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- shearout ball seat sub 剪切球座接头
- The position of the ball seat and key flats must be noted on stock list when not in standard position on oblong and rectangular punches and buttons. 当椭圆形，矩形的冲头及入子没有在标准的位置时，球锁的位置及扁平键应该标在料表清单上。
- Blowdown bottom ball seat is specially designed to avoid blowout in operation of water well. 泄压式底部球座是避免水井作业时冒喷而专门设计的水井管柱底球。
- The landing collar comprises housing, ball seat and latch. The latch holds ball seat through pins. After the hanger is set, pressure is applied to release the ball seat. 由外壳、锁紧座和球座等组成。锁紧座与球座通过销钉连接，憋压座挂后再加压，球座脱落，循环重新畅通。
- Ball valve adopts double inclined plane flexible seal ring, efficiently reducing the frication between ball body and valve seat, and operation moment, and ensuring the service life of ball seat. 当介质的冲刷力较大时.;特别设计的阀座防冲刷结构能有效防止介质的冲刷;确保阀座的使用寿命
- New Method for Furbishing Ball Seat 球座研磨新方法
- steering knuckle tie rod ball seat 转向关节系杆球座
- He nabbed the best seat in the house. 他抢到剧院最好座位。
- He came in and took a seat opposite to me. 他走进来，坐在我对面的座位上。
- I twisted round in my seat to speak to her. 我坐在位子上转过身来跟她说话。
- She got on the bus and picked a seat up front. 她上了公车,找了个最前面的座位。
- He singled and went to second on a passed ball. 他击出一垒打，再因对方漏接而跑上二垒。
- She took a seat in the back and watched. 她在后排找了一个座位坐下看起来。
- In cricket, the ball is delivered overarm. 打板球时，要举臂过肩掷球。
- Make BOMs of seat metal frame system assemblies and sub assemblies. 制作座椅金属骨架总成及分总成的BOM表.
- Children love to ball snow up in their hands. 小孩子们喜欢将雪在手里做成球儿。
- He lay back and hit the ball for four. 他向后弯身击中球，得了4分。
- He lost his seat in the Parliament at the election. 他在选举中失去了议会中的席位。
- She came out of her room equipped for the ball. 她盛装从房里出来预备到跳舞会去。
- One economy class seat, is that right? 一个经济舱座位，对吗？
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
