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- Remove the upper valving of X-tree above the spool. 抬开大四通以上采油树闸门部分。
- Valve rod with valve lids between bring fall airproof structure, Convenients for valve bring press replacing valve stem packing. 阀杆与阀盖之间带倒密封结构，便于阀门带压更换阀杆填料。
- AIR VALVE IS MADE UP OF UPPER VALVE SEAT, LOWER VALVE SEAT, 5 KINDS OF ACCURATE VALVE SLICE AND 25 SPRINGS. 该气阀是由上阀座、下阀座及大小5种精密阀片和25个弹簧等零件组成。
- The procedure to prevent hardfaccd slide valve rod from crazing and distortion is put forware and rcsuits show that hardfaccd rod possesses good abrasiveness and long life. 现场使用表明:经喷焊强化后的滑阀杆具有较好的耐磨性,延长了使用寿命。
- These valves eliminate the need of elastomeric packing by sealing the upper valve with a series of metal diaphragms. 它们通过使用一系列的金属横膈膜来密封阀门上部，不需要人造橡胶衬垫。
- Theoretical Study and Failure Analysis of Valve Rod Slot Fracture 排气阀杆锁夹槽断裂分析及机理研究
- Tears are secreted by an organ under the upper eyelid. 眼泪由上眼睑下面的器官分泌。
- I'd like a room on the upper level. 我想要楼上的房间。
- Analysis and Prevention Measures for Quenching Crack of 45 Steel Valve Rod 45钢气门推杆淬火裂纹原因分析及预防措施
- My hometown is in the upper reaches of the river. 我的家乡在这条河的上游地区。
- The connecting rod may drive a valve stem directly. 连杆可以直接带动阀门的把柄。
- He locked his diary in the upper drawer. 他把日记锁在上层抽屉里。
- Have you turned off the water valve? 你关掉水阀了吗？
- He have tattoo the name "marlene" on his upper arm. 他将＂玛琳＂这个名字刺在臂的上方。
- A band or badge worn around the upper arm. 臂章戴在上臂的绑带或徽章
- A canine tooth of the upper jaw. 上颚犬齿上颚的一个犬齿
- He's between the upper and nether millstone. 他深受上下夹攻。
- This part of town is where the upper class live. 镇上这个地区是上层阶级的人住的。
- We need an eye bolt to fit this valve. 我们需要一个有眼螺栓来固定这个阀门。
- He had an infection in the upper respiratory tract. 他上呼吸道感染。
