continuous liner连续式: continuous type衬: line; place sth. underneath分段式衬套: segmented insert浮动式衬套: floating bush扩张式衬套: expanding bushing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:连续式衬套，即可在微信中查询翻译
