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- According to condensed water and steam density difference,the valve automatically rise or fall along with the change of water level,opev or close the valve hole through lever driving valve core . 该阀根据凝结水和蒸汽的密度差，浮球随阀腔内水位的变化而自动升降，通过杠杆带动柱面阀芯开启或关闭阀孔。
- valve hole critical gas-velocity 临界阀孔气速
- His strength in a crisis is an ace in the hole. 临危不惧是他的看家本领。
- By analyzing the reason of engendering bell in cutting valve holes and the method of removing bell, the design thought of th e carbide floating compound reamer is introduced. 通过分析阀孔加工中喇叭口的形成原因及消除方法，介绍了加工阀孔用硬质合金浮动复合铰刀的设计思路。
- By analyzing the reason of engendering bell in cutting valve holes and the method of removing bell, the design thought of the carbide floating compound reamer is introduced. 通过分析阀孔加工中喇叭口的形成原因及消除方法,介绍了加工阀孔用硬质合金浮动复合铰刀的设计思路。
- He chiseled a hole in the door to fit a new lock. 他在门上凿了个孔，以便装一把新锁。
- The bird picked a hole in the ice with its beak. 那鸟在冰上啄出了一个洞。
- The child has picked a hole in his new jumper. 孩子的新毛衣上勾了一个洞。
- Stick your hand in and see what's in the hole. 把手伸进去，看看洞里有什么。
- The dog skins through the small hole in the wall. 那条狗勉强钻过小小的墙洞。
- The men in the hole sent up for more equipment. 在洞穴中的人们向上面要求再给他们一些设备。
- Have you turned off the water valve? 你关掉水阀了吗？
- The mice have nibbled a hole in the cheese. 老鼠在奶酪上啃出了一个洞。
- I saw a rabbit dive into its hole. 我看见一只兔子钻进洞。
- She poked her finger into the hole. 她把手指插入孔中。
- Their dog bit a hole in my trousers. 他们的狗把我的裤子咬了个窟窿。
- He knocked a big hole in the wall. 他把墙撞出了一个大洞。
- He burned a hole on the ironing board. 他把熨衣板烧了一个洞。
- 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。
- The hospital bills made a big hole in her savings. 住院费花去了她一大笔存款。
