The motion of a device or some part of a mechanism, such as a piston, that is constrained to move along a fixed course during operation, such as in a…
| 单词 | θ214538 | 
| 释义 | society > occupation and work > equipment > machine > parts of machines > 			[noun]		 > movement of parts (2)		 travel1799 The motion of a device or some part of a mechanism, such as a piston, that is constrained to move along a fixed course during operation, such as in a… side play1808 freedom or room for movement in a sideways direction.  | 
	
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