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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. 這種類(lèi)型的閥門(mén)，其密封部件象一個(gè)大橡膠炸圈餅，機械地向內擠壓，以密封管柱（鉆鋌、鉆桿、套管或油管）或裸眼。
- The child's rubber ball punctured when it fell on a prickly bush. 那小孩的皮球落在帶刺的樹(shù)叢上時(shí)被戳破了。
- Even the best quality rubber will perish with age. 就是最佳質(zhì)量的橡膠也會(huì )因老化而腐爛。
- There is a rose bush in front of the office. 辦公室前有一叢玫瑰。
- Rubber has more resilience than wood. 橡膠有比木頭更大的彈性。
- The bush was planted early on in the season. 樹(shù)叢在植樹(shù)季節一到時(shí)就種下了。
- Glaze a doughnut; glaze pottery. 在甜甜圈上澆糖漿; 給陶器上釉
- Rubber boots are impervious to water. 橡膠鞋是防水的。
- Earlier, bush telegraph worked a treat. 人類(lèi)早期傳遞信息的方法真棒，是件令人開(kāi)心的事。
- I have not a good hand the whole rubber. 整個(gè)一盤(pán)牌中我就沒(méi)有拿到過(guò)一手好牌。
- There is a bush of bramble in front of the cabin. 小木屋前有一叢黑莓。
- No, I'm going to the snack bar to get a doughnut and some milk. 不，我要到小吃店買(mǎi)一個(gè)油炸圈餅和一些牛奶。
- Rubber bush for prestressed concrete tubing. 說(shuō)明:制造預應力水泥管時(shí)使用的橡膠模套,。
- Bush finally heading to White House. 美國大選落幕，小布什入主白宮。
- She used a rubber band to tie her hair. 她用一根橡皮筋扎頭發(fā)。
- We imported raw rubber from Malaysia. 我們從馬來(lái)西亞進(jìn)口生膠。
- One beats the bush, and another catches the birds. [諺]人竭其力，汝享其成。
- The soldier saw a gun jutting out from a bush. 那士兵看見(jiàn)一支槍從矮樹(shù)叢伸出來(lái)。
- Rubber is the country's principal export. 橡膠制品是該國主要的出口產(chǎn)品。
- These straggly stems should be pruned off the bush. 這些灌木的蔓生枝條該剪了。
