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- head and stem assembly 机头头杆组件
- It has special unitized construction which consists of the seat, disc and stem assembly, and strainer screen all together in one unit for complete replacement maintenance. 它具有特殊的整体结构,由阀座,阀瓣和阀杆总成,以及过滤器网等整合在一个整体中,完全能够进行更换维护。
- Keep a level head and phone the Fire Department. 保持冷静,打电话给消防署。
- Laura bent her head and hurried on. 劳拉低着头匆匆往前走。
- I'll just rough in the shape of the head and you can paint the sky round it. 我把头形勾勒出来,你可以在头四周画上天空。
- The dog reared its head and barked. 那条狗仰起头汪汪地叫。
- He knocked me on the head and blow stupefied me. 他给我当头一击,把我打得不省人事。
- He threw back his head and roared with laughter. 他仰著头哈哈大笑。
- A person has one head and one neck. 每人都有一个头,一个脖子。
- I turned my head and saw the profile of a man. 我转过头,看见了一个人的侧影。
- Please raise your head and look at the blackboard. 请抬起头来,看黑板。
- Axil the upper angle between leaf and stem. 叶在茎上的着生处称为叶腋。
- He rose his head and stared at the firmament. 他抬起头,凝望着天空。
- In the crash he suffered severe injuries to the head and arms. 在事故中他头部和双臂受了重伤。
- Remove stem assembly (A) and lock setting by drilling hole and inserting dowel pin (C). 拆卸阀杆总成(A),并且通过钻孔锁定设置和插入定位销(C)。
- The ball went over the pitcher's head and into center field for a single. 球越过投手头顶,飞向中外场造成一垒打。
- A two piece packing gland prevents cocking and stem damage. 两件式填料压盖防止压盖翘起和阀杆损坏。
- Nancy is head and shoulders above the rest of the class in literature. 在文学方面,南希比班上其他人强得多。
- Lift pressure plate (7) to withdraw diaphragm and stem from valve. 提升压力板(7),从阀门内退出隔膜和阀杆。
- I remember him both hasty and stem, but never with me. 我记得他既性急又严厉,但对我却从来不是这样。