They have watched the slow untwisting of some silver cord on which the lamp of life hung.
如果你去查阅
以往的历史，你就会发现
过多少苦难。
They have watched the slow untwisting of some silver cord on which the lamp of life hung.
如果你去查阅以往的历史，你就会发现过多少苦难。
In this paper,fluid mechanics was applied to analyze the flow field of swirling jet flow and guide the twisting and untwisting of pneumatic splice.
用
体力学分析旋转射的场，来指导气捻接的解捻与加捻。
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