Can partially rotate for tight shutoff . In the fully open position it rests against a stop .

为了关闭 紧密，可以部分旋转。在完全开启 状态，阀瓣处于松弛性停止状态。

It is pointed difficultly that structral outer arc where tensional stress is concentrated is the best p - lace of gas accumulation in the tight reservoir rocks and about 80 % of gas wells are located in such position .

明确提出张应力集中的构造外弧是四川 致密储集层天然气富集的最佳 部位，控制了80%以上的气井分布。

The dilemma is relates tight with western modern philosophy which shows the writer 's spirit being in a difficult position and the writer can 't extricate it according to the writer 's literal choice .

这种两难处境与西方现代人本主义哲学有很 深关联，显示出作家文化选择上无法摆脱的精神 困境。

Applying fluid mechanics theory sealing ability of thread compound is researched by calculating the energy loss of thread passage at hand tight position and the sealing experiment at hand tight position .

应用流体力学理论，通过 手紧位置螺纹通道流体能量损失的求解和 手紧 位置处的密封实验，研究了螺纹脂的密封能力。

Tight all closures and put the valve cover door on position before shipment .

运输前 拧紧所有密封件，盖好阀门 挡板。

The servo belt must be tight when it 's found loosened adjust the position of the servo-actuator immediately .

伺服皮带应张 紧无松动，如有变化应立即调整伺服电机固定座 位置。

Cascade fuse in normal operation melting molten silk fiber tube with a tight formed after the position .

跌落式熔断器在正常运行时，熔丝管借助熔丝 张 紧后形成闭合 位置。