under tighten的例句大全

They are now under a great deal of pressure to tighten their airport security

他们现在承受着加强机场安保措施的巨大压力。

the 3d fea model was established, and the numerical simulation of sealing process under pre-tightening load and operation load conditions for the double-cone seal structure for 1800~ 3000mm diameter.

双锥密封结构密封过程数值模拟研究建立了双锥密封系统三维有限元分析模型，对筒体内径1800～3000mm的双锥密封系统在预紧及操作工况下的密封过程进行了数值模拟。

This article also put forward proposals on tighten up the management of under artificial feeding.

并对如何加强丹顶鹤的饲养管理提出了具体建议.

Watching Tom, I saw the wad of muscle back of his shoulder tighten under his coat.

我注视着汤姆, 看见他肩膀后面那团肌肉在上衣下面紧张起来.

They are now under a great deal of pressure to tighten their airport security.

他们现在承受着加强机场安保措施的巨大压力。