单词:high voltage presence indicating device
单词:high voltage presence indicating device 相关文章
EDUCATION REPORT - American Educators Consider Later High School Start TimesBy Nancy Steinbach Broadcast: Thursday, February 02, 2006 This is Shep O'Neal with the VOA Special English Education Report.
[00:18.09]Night Shift [00:22.08]夜班 [00:38.91]Everything started as planed on that Monday. [00:42.57]I did my rounds and I was just enjoying working at night. [00:47.66]Tuesday went by and I could not love my work more. [00:52.13]But on Wednesday ni
It must work without a hitch. 必须能够无故障运行。 It must work without a hitch. 必须能够无故障运行。 It has been tested for nine times. 我们已经对其进行了九次测试。 These elements seem to be working well under high
China has long depended on coal-burning power plants to fuel its explosive growth over the past three decades. As a result, air pollution has risen to alarming levels in central and eastern regions. Policymakers have been working hard to shift the co
High-Tech Device Reduces Risk of Hospital Infections This machine fires bursts of ultraviolet, or UV, light that penetrate the cells of micro-organisms and kill them. The organisms have no chance to adapt and gain immunity as they might with a chemic
Bird on a Wire 当我们行走在马路上时,经常可以看到成群的麻雀或乌鸦停落在几万伏的高压电线上,它们不仅不会触电,而且一个个显得悠闲自得。可是,你也知道,如果有人不小心碰到高压线