它将封隔器与伸缩管设计成一体，采用V形膨胀石墨密封圈组成密封系统，确保伸缩管热力伸长时封隔器的密封性。
The packer and telescopic tube are designed to a whole body and V-shaped inflatable graphite sealing ring is used to form the sealing system, ensuring the sealing performance of.
结果表明，在编织过程中纱线张力呈周期性变化，在一个周期中至少有三个峰值，编织过程中成圈机件位置变化对经纱张力有很大影响。
The results showed that there are at least three main peaks in knitting cycle. The position of knitting elements has important effect on warp tension.
科技圈的人喜欢把自己所在的行业说成是一片波涛汹涌的海洋，时刻面临颠覆性的变化。在这片海洋中，每一个赢家都容易遭受尚且不为人知的新对手出其不意的攻击。
Tech people like to picture their industry as a roiling sea of disruption, in which every winner is vulnerable to surprise attack from some novel, as-yet-unimagined foe.
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