Previous research had determined that skin could absorb water, but couldn't pin down why it didn't fall apart when it expanded.
先前的研究断定皮肤能够吸收水分，但是未能找出皮肤膨胀后不会破裂的确切原因。
Much like a bowling pin that wobbles back and forth yet does not fall, a penguin 's body is carried forward by kinetic energy.
企鹅的身体非常类似一个来回摇摆却不会倒下的保龄球瓶，被动能带动向前。
Action is to be used pin annular slideway C, make its and groove D photograph cooperate, prevent shuttle to wear from shuttle fall off inside housing;
作用一是用来压住环形导轨C，使其与凹槽D相配合，防止梭架从梭壳内脱落；
Action is to be used pin annular slideway C, make its and groove D photograph cooperate, prevent shuttle to wear from shuttle fall off inside housing;
作用一是用来压住环形导轨C，使其与凹槽D相配合，防止梭架从梭壳内脱落；
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