1·Gray iron--an alloy of iron carbon and silicon ; easily cast; good pressure tightness in the as-castcondition.
灰口铁--一种铁碳和硅的合金；易于铸造；在铸态下具有很好的压力紧固性。
2·Sometimes tightness in our legs may lead us to run with improper form, which may put pressure on a nerve and lead to the numbness.
有时候我们的腿紧张时会使我们以不恰当的形式跑步，这将对神经造成压力并导致麻木。
3·Tension headaches tend to feel like a pressure or tightness around the head.
患了紧张性头痛，感觉像脑袋周围无法放松，有一圈压力压着似的。
4·Some initial pressure or tightness for about 5 minutes should be expected.
一些起始压力或坚固大约5分钟之久应该是预期的。
5·Seating load and tightness is dependent on back pressure.
阀座密封负载和紧密性与反压力相关。
6·Seating load and resultant tightness is dependent upon back pressure.
阀座密封负载和组合的紧密性是与返回压力密切相关。
7·The minimum fitting pressure and tightness using to transfer load can be easily calculated. It provides an efficiency tool for tight fitting's design and calculating.
该系统可完成有关过盈配合的最小配合面压强、传递载荷所需的最小过盈量等参数的计算，为过盈配合的设计与计算提供了一个高效的工具。
8·With very good air-tightness, can conduct reaction under negative pressure and easily assemble distillation, reflow device.
有很好的气密性可在负压下反应方便地组装成蒸馏回流装置。
9·Seat tightness achieved with torque as opposed to line pressure.
利用扭矩而不是管路压力来实现阀座的密封。
10·Check the tightness of the system by slightly turn the syringe (4), the ear pressure curve should increase by some millimetres and then stabilize.
稍微转动注射器(4)，检查系统的严密性，耳压曲线应增加几毫米、然后稳定下来。