A vehicle was devised a few years ago which permitted movement over difficult land and could fly for a short distance.

几年前人们设计了一台能在难于行走的地面上行动并能短距离飞行的交通工具。

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When a peer closes its socket (resulting in the issuance of a SHUTDOWN primitive), both endpoints are required to close, and no further data movement is permitted in either direction.

当一端关闭自己的套接字时(导致产生一个SHUTDOWN原语)，对等的两端全部需要关闭，将来任何一端都不允许再进行数据的移动了。

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Sharp curvature and sharply skewed supports can cause excessive lateral thermal forces at supports if only tangential movement is permitted.

小曲率和严重倾斜的支撑能在只允许切线运动的支撑上引起过度的侧向热力。

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