- 重点词汇
- toprep. 向,朝着;到;关于;属于;
- transmissionn.播送;传送;(电台或电视)信息;传动装置;
- platen.盘子;(金属)板条,板材;板块;(印刷用的)印版,图版;碟子;一盘;(玻璃、金属等)底片,感光板;(车辆的)号码牌;镀金(或镀银)的金属;(刻有名字等的)金属牌子;一道主菜;盾片;一盘所盛之量;金的(或银的)餐具;书籍插图照片
- wdabbr.would 将;weed 野草;window 窗口;ward 病房;word单词;War Department <美> 陆军部(1957年改为DA)
- spacern.取间隔的装置,逆电流器;
- insulatorn.绝缘,隔热或隔音等的物质或装置;隔离者;隔离物,隔振子,隔电子;
- mountingadj.上升的,增长的;
- 4 four;
- 相关例句
Even in an insulator the electrons can move about without leaving their parent atoms or molecules.
甚至在绝缘体内,电子也能不离开它所属的原子或分子而运动.
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In a hot climate the condensation will be on the inner surface of the insulator.
在气候炎热时,凝结水将出现在隔热层的内表面.
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Semiconductors have properties different from those of conductors and insulators.
半导体具有不同于导体和绝缘体的特性.
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In metals all electrons are free, and in insulators they are fixed.
金属里面电子是自由运动的, 但在绝缘体里面是不动的.
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Insulators in reality conduct electricity but, nevertheless, their resistance is very high.
绝缘体实际上也导电, 但其电阻很高.
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Diabetics who must take extra insulin should take care not to overdo it.
需要额外服用胰岛素的糖尿病患者,应该小心,不要服量过多.
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