Gear shaping machine can machine the worm gears
举一反三
- A machine____ is a machine for shaping or machining metal or other rigid materials
- Before the machine is switched on, ensure that no one can _________ when the machine is running.
- The landing gear consists of the _________ gear and the main gears
- How can you keep the machine to run?
- Before the machine is switched on, ensure that no one can _________ when the machine is running. A: endanger B: endangered C: Be endangering D: be endangered