1. Sample test questions; a sample piece of fabric. 
   问题范例；一片纺织样本
2. A cushioning device, such as a bundle of rope or a piece of timber, used on the side of a vessel or dock to absorb impact or friction. 
   缓冲装置一种减小震动或冲撞力的装置，如一捆绳子或一块木头，用在船或船坞的侧面以承受撞击或摩擦力
3. insulation of impact sound 
   撞击声的隔声
4. prediction of impact point 
   落点预示
5. As part of this effort, another little piece of evidence, Iraq has built an engine test stand that is larger than anything it has ever had. 
   另一项证据是伊拉克已经制造完全了一个发动机测试台，该测试台比以往的测试台大的多。

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