| 单词 | automotive transmission | 
| 释义 | automotive transmission [¦ȯd·ǝ¦mōd·iv tranz`mish·ǝn]  MECHANICAL ENGINEERING A device for providing different gear or drive ratios between the engine and drive wheels of an automotive vehicle, a principal function being to enable the vehicle to accelerate from rest through a wide speed range while the engine operates within its most effective range.  | 
	
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