磁铁(magnet)能吸引(attract)铁质材料(iron material),这是大伙儿熟悉的现象。10、若是那个关系式(relation)成立(hold)的话,咱们就取得一个负的电流,这种情形(situation)是不可能的。1一、电路(circuit)中的电流(current)与外加电压(applied voltage)成正比(be proportional to),这一点是由欧姆(Ohm)用实验方式(experimentally)证明(verify)的。1二、运算性能够处置信息,这一进程以前(previously)只能在咱们的头脑里完成(accomplish)。13、激光(laser)是20世纪60年代进展起来(introduce)的一项新技术,它能穿透(pierce)像金刚石(diamond)如此最坚硬的物质(substance)。14、色谱分离法(chromatography)是一种超级有效的分离(separation)方式,它已取得了普遍的应用。1五、这根2.5米长的铝棒(aluminum bar)具有1厘米×5厘米的长方形横截面(rectangular cross section)。III、1. No image is formed of the object precisely at the focal point of a converging lens.2. An initial analysis is made of the performance of the device.3. The law is well known that to each action there is an equal and opposite reaction.4. The magnetic field is the space around a magnet occupied by the magnetic lines of force.5. This leads to the battery voltage in the model of 840 mV.6. This graph shows the variation with frequency of the resistance of the resistor.7. This is responsible for the direct return to the atmosphere of more than half the water that falls on the land.8. The forward bias results in the injection into the depletion layer of the electrons from the conduction band of the N-type material.9. The question now arises how these unknowns can be determined.10. It is necessary to determine the effect on the device of changing the ambient temperature.11. The assumption has been made that the pressure always remains constant during the test.12. Cases often occur [arise] in which [where] the integration region varies with parameters.IV、Temperature is difficult to define with precision. There are a number of properties of matter that vary with temperature. These can be used to construct thermometers——devices for measuring temperature. By measuring the color of the light it gives off, we can determine the temperature of an object. Of wider application is the fact that matter usually expands when its temperature is increased and contracts when its temperature is decreased. Two strips of different metals that are joined together bend to one side with a change in temperature, a fact (that is) employed in constructing household oven thermometers.V、1. The simulation results show that both the schemes are easy to implement.2. The model and algorithm proposed in this paper are to a certain degree [extent] superior in performance to the conventional BP algorithm.3. We have obtained he result that the number of 2-edge self-complementary graphs with p vertexes isap = 2 (Sp(2): 1, 3, 1, 3, …)4. A new technique for estimating the frequency deviation is proposed which gives a high accuracy and requires a small amount of computation.5. Improvement of the accuracy of range alignment in ISAR imaging by using the super resolution technique6. Research on and the realization of DTMF in a Cipher Coder7. Analysis of the ability of a quartz flexibility accelerometer to resist bad environment8. The product is made from high quality soybeans produced in northeast China, by using the most advanced facilities and high technology. The product contains various amino acids, unsaturated fatty acid, carbohydrate, calcium, phosphorus, iron, inorganic salts and varied vitamins. It is characterized by high protein, low fat, no cholesterol and pure, strong smell of soybeans. It does not contain any artificial synthetic additive. So it is the best fully [completely] natural nutritious drink.练习14I、1. 主题句:第一句;结论句:最后一句。2. 整个一小段[只有一句话]为主题句。3. 主题句:第一句;本段没有结论句。4. 主题句:第一句;本段没有结论句。II、then; Nextwhileof courseHoweverIn general; whileHenceIn factFor instancebut; However; namely [that is]InsteadIII、One of the fundamental properties of matter is inertia, the Latin word “inertia” meaning laziness.It has been observed that bodies do not change their state of rest or motion until some other body forces them to do it. It is known form experiment that a body at rest tends to stay at rest unless a force is applied to make it move. A book lying on a table stays there unless a force is applied to move it. It is also known that any body, once (it is) in motion, will continue to move because of its inertia. To stop it a force must be applied by any other body.IV、1. An analysis of the EMI spectrum at the input of the SMPS and its suppression2. Also, a quantitative expression for the effect of all these factors on the performance of the system is derived, on the basis of which an improved system is presented.3. The performance of the system has been improved (by) 14~30dB on condition that the complexity of the system remains unchanged.4. Measurements are generally of three groups: those made of capacitance, those made of current and those made of voltage.5. This device can detect whether an IC functions properly or not [can detect the quality of an IC] and identify the type of an unknown chip.6. his paper deals with the extension of the RELAX algorithm from data domain to correlation domain.7. The principle of the digital correlator is introduced, with its spectrum de-extension performance in the spectrum extension system analyzed.8. In using this Pascal program, all the user needs to do is (to) input the graph model of his or her applied problem so as to get its solution displayed on the computer system.9. In this way, the area of an antenna site may be reduced to one-third that of the conventional one.10. H and H’ must satisfy the conditions of Theorem and Theorem when embedded in Fig. 5.练习15I、Semiconductors are a substance whose conductivity lies [comes; is] between that of conductors and that of non-conductors. Common examples are silicon and germanium [Silicon and germanium are in common use]. Semiconductors are quite sensitive to heat and light, both of which have a great effect on their conductivity. Therefore [Thus; So; s a result], semiconductors are widely used for automatically counting parts on conveying belts and for many other purposes.II、1. In this case, we consider joining ξ1 andη3.2. This new algorithm maintains the advantage of finding he optimal routes very quickly.3. This paper presents a new approach to realizing multi-point communication with the MC145442 one-chip modem manufactured by the MOTOROLA CO.4. Let G be an s.c. graph with 4n vertices, and then the spanning subgraph H* of G is a graph.5. This circuit can be easily cascaded to obtain high-order current-mode filters.6. It takes only 5 iterations to obtain the result by using this algorithm, which are far fewer than 250 iterations required to obtain the same result by using the traditional algorithm.7. The features of this new algorithm are simplicity and objectivity.8. It deserves to be further studied which nonlinear function should be selected.9. This process is very similar to the one by which a fluid flows from one vessel through a neural network to another.10. The test of the system was conducted at a factory in Hong Kong with satisfactory results.练习16I、1.This paper presents a new temperature-measuring method, with emphasis on its basic principles.2. The results obtained indicate that this method is very effective.3. This point remains to be further studied.4. This problem will be discussed in the next chapter.5. In the previous sections, we dealt with the composition of a computer.6. It follows from this experiment that volume is inversely proportional to pressure.7. This statement has been verified.8. All these values of x do not satisfy the equation.9. This depends to some extent on the bandwidth of the signal.10. Gamma rays are entirely different in nature from alpha rays.11. This force is due solely to the electrostatic field.12. This kind of machine consists generally of six parts.II、1. This new method has many advantages over those available [over the existing ones].2. The variation of pressure with temperature is obvious.3. We can determine the response of the device to frequency.4. This coefficient is defined as the ratio of a length to a length.5. The change [conversion; transformation; turning; translation] of AC into [to] DC is very easy.6. The exposure of the human body to the sunlight is beneficial to the health.7. This paper deals with the effect [influence; impact] of EM waves on [upon] human bodies.8. The preface to this book is well written.9. The approach to measuring wind speeds has been widely adopted.10. This paper presents initial researches on fluids.III、1. A comparison of this method with the existing ones is made.2. A brief introduction to several new concepts is given in this section.3. The control of temperature is effected by the use of this device.4. This parameter is an indication of the amount of amplification of a transistor.5. Fig. 1-8 gives an illustration of the process of signal transmission.IV、1. Each computer section will be introduced in detail.2. Two other parameters are also very important.3. This section introduces four additional kinds of instrument.4. A robot is a special kind of electronic device.5. We shall adopt a new set of parameters here.6. This symbol stands for the negative battery terminal.7. This technology has reached the advanced world level.1六、这必然律适用于具有火箭速度的物体。17、咱们必需对它进行频率调制(modulate)。1八、为了解这道题(problem),咱们必需把各类因素考虑进去,这一步骤(procedure)是十分复杂的(complicated)。1九、万用表(multimeter)是测量电流、电压、电阻的仪表,它普遍地用在电气工程中。20、这些材料是压敏的。III、将下列句子译成英语: