1、
Increased stress makes flexible installation can face a rocky ledge, which adjust seal gap.
压力的增大使得挠性安装的端面能够窜动, 从而调整密封间隙.
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2、
He awoke in his right mind, lying on his back on a rocky ledge.
有一天,他醒过来, 神智清楚地仰卧在一块岩石上.
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