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- In this type of valve, the sealing element resembles a large rubber doughnut that is mechanically squeezed inward to seal on either pipe (drill collars, drillpipe, casing, or tubing) or the openhole. 这种类型的阀门,其密封部件象一个大橡胶炸圈饼,机械地向内挤压,以密封管柱(钻铤、钻杆、套管或油管)或裸眼。
- The child's rubber ball punctured when it fell on a prickly bush. 那小孩的皮球落在带刺的树丛上时被戳破了。
- Even the best quality rubber will perish with age. 就是最佳质量的橡胶也会因老化而腐烂。
- There is a rose bush in front of the office. 办公室前有一丛玫瑰。
- Rubber has more resilience than wood. 橡胶有比木头更大的弹性。
- The bush was planted early on in the season. 树丛在植树季节一到时就种下了。
- Glaze a doughnut; glaze pottery. 在甜甜圈上浇糖浆; 给陶器上釉
- Rubber boots are impervious to water. 橡胶鞋是防水的。
- Earlier, bush telegraph worked a treat. 人类早期传递信息的方法真棒,是件令人开心的事。
- I have not a good hand the whole rubber. 整个一盘牌中我就没有拿到过一手好牌。
- There is a bush of bramble in front of the cabin. 小木屋前有一丛黑莓。
- No, I'm going to the snack bar to get a doughnut and some milk. 不,我要到小吃店买一个油炸圈饼和一些牛奶。
- Rubber bush for prestressed concrete tubing. 说明:制造预应力水泥管时使用的橡胶模套,。
- Bush finally heading to White House. 美国大选落幕,小布什入主白宫。
- She used a rubber band to tie her hair. 她用一根橡皮筋扎头发。
- We imported raw rubber from Malaysia. 我们从马来西亚进口生胶。
- One beats the bush, and another catches the birds. [谚]人竭其力,汝享其成。
- The soldier saw a gun jutting out from a bush. 那士兵看见一支枪从矮树丛伸出来。
- Rubber is the country's principal export. 橡胶制品是该国主要的出口产品。
- These straggly stems should be pruned off the bush. 这些灌木的蔓生枝条该剪了。