您要查找的是不是：
- valve refacing machine 磨阀面机
- The machine must break down at this busy hour. 正忙的时候，机器偏偏又坏了。
- The uses of this machine are manifold. 这台机器有多种用途。
- The new grinding machine passed all tests. 这台新磨床通过了所有的试验。
- Have you turned off the water valve? 你关掉水阀了吗？
- Oil feeds into the machine through this tubing. 油经过这个管子流入机器。
- Did you get a good trade-in on your sewing machine? 你以旧缝纫机折价换新合算吗？
- You may stop the machine by pushing this button. 按下这个按钮你就可以关掉这个机器。
- 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。
- Just press the button and the machine will start. 只要一按电钮，机器就会开动。
- valve refacing 磨气门
- The machine cast up a big heap of earth. 机器卷起了一大堆泥土。
- The machine feeds back everything you need to know. 这架机器可以把你所需要知道的全部材料再提供出来。
- The machine is used to rip up the documents. 这台机器使用来搅碎旧布并为织出新布提供纤维的。
- The machine stops and starts at a touch. 这机器一触即可停止或开动。
- He soon detected the faulty valve. 他很快查到了出毛病的阀门。
- Have oiled the machine, he begin to run it. 他把机器上了油之后便开始开动。
- Oil the moving parts of this machine regularly. 要定期给这部机器的运转部件上油。
- The machine started up with a roar. 机器一声轰鸣开动了。
- I pieced out the machine with scrap parts. 我用破铜烂铁拼成了这台机器。
