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  1. Penetrating abilities : Alpha particles < Beta particles <... beta decay is in general a slower process than gamma or alpha decay, beta particles can penetrate hundreds of times farther than alpha particles. Shielding for gamma rays...

  2. The greater the penetrating effect, the higher the ability for the electron...order is: s>p>d>f. For penetrating effect is also s>p>d>f. ...

  3. Penetrating oil can also be used as general purpose lubricant, or to clean or prevent corrosion. 進入油也能被用作多功能的潤滑劑,或者清潔或者防止腐蝕。

    分類:社會及文化 > 語言 2006年12月18日

  4. High penetrating radiaiton (x-ray or gamma ray) poses great radiation hazard.... However, gamma or x rays can penetrate deep into the body. This brings hazards...

  5. cancer treatment 的話﹑是用 beta radiation 比較好的 雖然 gamma radiation 的 penetrating power 較強﹑ 但我們沒必要用上這麼強的 penetrating power 加上 gamma...

  6. Q1) X-ray can penetrate very very thin metal sheet and so cannot penetrate ..., e.g. gramma rays, have higher penetrating power because they have much higher than atoms...

  7. UV light is not so penetrating . It can just reach the dermis of the skin...cut in this way: (1)UV is highly penetrating (2)UV tends to damage body tissue...

  8. ... because of their lower temperature. Ultraviolet could penetrate clouds unless the clouds are froming very thick layer, such as those...

  9. ...of 250s-1 圖片參考:http://hk.geocities.com/yee_lamlam/fig8.22.bmp it penetrates and finally leaves the board at a speed of 200ms-1 a) describle the energy change...

  10. ... would like to give them more time to stay together and have a short but penetrating love story romatic??? it is a spelling mistake. it should be romantic...

    分類:社會及文化 > 語言 2009年05月24日