As the hatch slowly closes, the weight rises inside a section of PVC pipe.
随着出口板缓慢合上，一截PV c管内的重量也增加。
Now lift up your weight and put the second section on top.
拿开你的重物，放上第二页纸。
The first section of the class was all about weight.
授课的第一部分内容关于重力。
Steel guard's section of its proportional number, weight and operation characteristics are very important.
钢板防护罩的节数对其比例、重量及运行特性都很重要。
Steel guard's section of its proportional number, weight and operation characteristics are very important.
钢板防护罩的节数对其比例、重量及运行特性都很重要。
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