assembly line的复数形式为：assembly lines...

Last year the millionth truck rolled off the assembly line.去年，第100万台卡车驶下流水线。He is best remembered for the introduction of the moving assembly-line.他最为人铭记的创举是率先采用流水装配线。The assembly line of necessity kept moving.生产线势必保持运转下...

n.（工厂产品的）装配线，流水线...

assembly line的音标：assembly line的英式发音音标为：[ə'sembli lain]assembly line的美式发音音标为：[ə'sɛmbli laɪn]...