电阻

• A third example is the electrical resistance of a wire, which also varies with hotness and coldness .
  第三个例子是导线的电阻，它也随冷热的变化而变化。
• In effect, a negative resistance is inserted in the circuit so that its total resistance is zero .
  实际上，这就是把负电阻接入电路，使电路的总电阻为零。
• The salinity of the water in the pores is probably the most critical factor determining the resistivity .
  孔隙内水的矿化度或许是决定电阻率的最主要因素。
• This is the theoretical expression for the resistivity, and it is in qualitative agreement with experiment .
  这就是电阻率的理论表达式，它与实验定性地符合。
• Let us now consider polarizable bodies whose resistivities are similar to that of the geological environment .
  现在我们来研究电阻率与地质介质相同的极化体。
• As the gas heats, its electrical resistance decreases and it radiates heat energy less efficiently .
  随着气体被加热，这些气体的电阻下降，辐射热能的效率也随之减低。
• The conductor-length problem was solved by forming the required length of wire into a grid pattern .
  电阻丝长度问题，是采取将所需长度的金属丝做成栅状结构的办法解决的。
• We close this chapter on resistive circuits with a brief introduction to the subject of electrical measurements .
  我们结束电阻电路这一章时，简短地介绍一下电气测量问题。
• This very universalness, however, also causes the greatest headaches in resistance measurement applications .
  但是，正是这种宽广的通用性，也给电阻测量的应用带来了麻烦。
• We frequently need a formula which will give the number of watts of power when we know the current and the resistance .
  我们常常需要一个已知电流和电阻时求功率瓦特数的分式。