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  1. 國際電工委員會定義Ingress Protection 意為電子設備的外殼對外界異物入侵的防護程度,分級由IPXX表示,第一...

  2. ... - OV-101 2. It is the outer garment of the thermal protection system (TPS) that insulates each orbiter's ship and crews...

  3. ...symbol. The Red Cross on white background was the original protection symbol declared at the 1864 Geneva Convention. It...

  4. adventages: 1.Help to promote environment protection 2.Educate toruist about mother nature 3.build up image of hong kong ...

  5. ... disasters tell us that we should concern about environmental protection and resources conservation.It also tells us that we should...

  6. 首先你無話你所講的device , 是何物我怎樣答你呢 ? bimetal device---可以用作heat protection , 例如熱水樽 . 又例如兩種不同metals , heat expansion不同 , 所以一條=層...

  7. ... with illegal action.Global seminar will be a issue that for protection or action will be taken

  8. faster response easy to be restored economical as no need to replace every time more reliable

  9. ... would cause any adverse health effect to human. 2. The Health Protection Agency of the United Kingdom has made a...

  10. ..._ effect of infrared radiation. 9.the pa system is called _ Protection Grade of UVA_.PA+.PA++,PA+++ 14.List...

  1. protection 相關
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