coupler draft spring support车钩: coupler; coupling; car body ...牵引: tow; drag; draw; haul; pull; ...簧: reed spring托: support from under牵引簧: draft ring; draft spring; drag spring; drawing spring; extend working spring下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:车钩牵引簧托，即可在微信中查询翻译
