Such assistance was essential in identifying potential dangers—poisonous species, unpredictable rivers, uncharted territories—which could mean the difference between life and death.
这种援助对于查明潜在危险——有毒物种、不可预测的河流、未知领域——至关重要，那些危险可能意味着生死之差。
They work because certain materials, such as bismuth telluride, generate an electrical potential difference within themselves if one part is hotter than another.
它们之所以能起作用是因为一般的材料，比如碲化铋，如果其中一部分比另一部分热，内部就会产生电位差。
Metallic tin is not electropositive enough compared with the electronegativity of its oxide to deliver a useful potential difference.
比起铅来，金属锡的电正性没有二氧化锡的电负性强，所以无法产生可用的电位差。
In the case of lead and lead dioxide, this potential difference is just over two volts per cell.
以铅和二氧化铅为例的电池，每节电池的电位差可产生2伏电压。
If a small potential difference exists between two ground points, some ground currents may flow through a sensitive part of the system.
如果在两个接地点存在一个小的电势差，在系统的敏感部分就会有接地电流通过。
The principle and the method of making a special power supply for a small, highly stable potential difference meter are introduced. It finds comprehensive application in college physical experiments.
本文介绍了一种小型高稳定电位差计专用电源的原理及制作方法。该电源在大学物理实验中具有较广泛的使用价值。
Is the world of status, the reading. Reading occupies a position, on character, not on the potential difference.
世间极占地位的，是读书一著。然读书占地位，在人品上，不在势位上。
If there is an ac potential difference between the shield and the measuring instrument, there may be capacitive currents flowing through the measuring circuit that will add interference.
如果屏蔽和测量仪器之间存在一个交流电势差，则可能有电容性电流通过测量电路，增大干扰。
It is measured by placing two electrodes on the surface of the test sample, applying a potential difference between them, and measuring the resulting current.
其测量方法是将两个电极放在测试样品的表面，在电极之间施加一个电位差，并测量产生的电流。
The results showed, the nitrifying potential difference reached 5% significant level, among all treatments, and the nitrifying capacity was especially reduced by the treatments of 4, 5, 6 , 7.
实验中各处理均能够降低土壤硝化势，达到5％的差异显著水平； 处理4、5、6、7也能够限制抑制硝化强度。
In this case, the current flowing through a wire is directly proportional to the potential difference maintained.
在这种情况下，流过导线的电流与保持的电位差成正比。 （ 分词和分词短语作定语）
The photoelectric characteristics of conducting polymer MEH - PPV film were studied using contact potential difference ( CPD ) method.
用接触电位差（CPD ）方法研究了导电聚合物MEH-PPV薄膜的光电特性。
The resistance of any length of a conducting wire is easily measured by finding the potential difference in volts between its ends when a known current is following.
已知导线中流过的电流，只要测出导线两端电位差的伏特值，就能很容易得出任何长度导线的电阻值。
The discharge is sustained in a large gap between the electrodes by establishing a high potential difference between the electrodes.
放电持续在一个大的差距电极通过建立一个具有很大的潜力之间的差异电极。
Mine, the causes of natural thermal potential difference in return air in main shaft and its influence on mine ventilation system and the control methods.
阐述了造成主井回风的自然热位差产生原因和对通风系统的影响，以及治理办法。
The electrification of zero line results from the the potential difference between zero line and the earth.
零线带电现象是指测量点处，零线与大地之间存在较明显的电位差。
We have made a novel instrument for the measurement of work function using contact potential difference method.
利用接触势差法自行设计开发了一种新型的表面功函数测试装置。
The structure, working principle, measuring circuit and frequency characteristics of contact potential difference nondestructive testing equipment using fixed probe am intro - duced.
介绍了接触电位差法固定探头式无损探伤装置的结构，工作原理，测量电路及其频率特性。
Avoiding electrochemistry erosion of colourful plank caused by electrical potential difference.
避免因电位差而引起彩板的电化学腐蚀。
The second class absorption heat pump can get hot water or vapour using heat potential difference of middle temperature exhaust gas and lower temperature sink.
第二类热泵可利用中间温度的废热与低温热源之间的热势差，制取热量少但温度高于中温废热的热水或蒸汽。
The driving force of primary migration is mainly abnormal high pressure and that of secondary migration is buoyance and fluid potential difference.
初次运移的动力主要是异常高压，二次运移的动力主要是浮力和流体势差。
Results: the taurine could significantly reduced gastric mucosal injury, inhibited the ET release, increase blood flow and potential difference of gastric mucosa.
结果：牛磺酸可明显减轻胃粘膜损伤，抑制内皮素释放，增加胃粘膜血流量，提高电位差。
With the example of working principle of US2 type ac potential difference accounts, the frequency formula was given by formula deducing and attaching with experiment data.
以us2型交流电位差计工作原理为例，通过公式推导并附以实验数据给出了频率的修正公式。
The further way from you the atoms are, the greater will be what we call the gravitational potential difference between you and those atoms.
离你越远，你和这些原子之间的原子能就越大，我们称这个原子能叫引力势差。
Sensitive Galvanometer, Model J0409, is suitable for the laboratories of middle schools and polytechnic schools to measure small electric current and electric potential difference.
J0409型灵敏电流计适用于中学、中专等实验室测量直流电路中微小电流和微小电势差。
Sensitive Galvanometer, Model J0409, is suitable for the laboratories of middle schools and polytechnic schools to measure small electric current and electric potential difference.
J0409型灵敏电流计适用于中学、中专等实验室测量直流电路中微小电流和微小电势差。
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