1) obturator ring
闭气环
1.
An axisymmetric elasticity model for the radial effect of the obturator ring and liner assembly of a breech mechanism with L shaped metal obturator ring is established.
对带 L形金属闭气环的闭气炮闩 ,建立了闭气环与衬套径向作用的轴对称弹性力学模型 ,并导出了最大膛压作用下闩体膛底合力计算公式 。
2) plastic obturating ring
塑料闭气环
3) closed rotative gas lift
闭环式气举
4) air injection closed cycle
压气闭式循环
5) pres-surized air circulation in a closed loop
压气闭路循环
1.
Complete with triple air/water swivel,kelly bar,triple drillpipe,heavy centralizer,etc,,the singleheaded large diameter DTH hammer can be used to perform advanced drilling technique which combines DTHrock drilling,cuttings removal with reverse circulation by pump suction,hole wall protection with mud and pres-surized air circulation in a closed loop.
大直径单头潜孔锤与三通道气水龙头、主动钻杆、王通道钻杆、加重导正器等配套，可实现大直径潜孔锤碎岩钻进、泵吸反循环排渣、泥浆护壁、压气闭路循环等相结合的先进钻进工艺，是解决大直径硬质基岩及卵砾石钻进的有效机具。
6) close-cycle air refrigeration
闭式空气循环
补充资料：闭气
闭气
water tight
biqi闭气(water tight)在堵口工程合龙后，采取阻水断流措施，阻止缝隙漏水。 用立堵法合龙，当合龙绿尚未蛰实，坝身仍然漏水，坝后翻花不止，大小远近不一，应辨明是底漏还是腰漏，如是底漏，说明绿体尚未到底，比较严重。闭气方法，一般有:①在正坝堵合后，除合龙蹄上加压土外，于口门坝前加修绿工，称为关门端。然后抛袋土及加修土俄，使之闭气;②双坝合龙时，用边坝合龙闭气，在正坝与边坝之间，用袋土及粘土填筑土柜，边坝之后再加后战，阻止透水;③修筑养水盆，即在坝后修筑围堤一道，把门口冲深的潭坑围起来，用以积蓄坝后渗水，抬高坝后水位与大河相平，即可闭气。对平堵的口门，因抛石渗漏严重，须采用①、②两种闭气办法，截堵渗流。(徐福龄)
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条