劃線平臺tracing: n. 追蹤,追溯,追查;描摹,映寫,復(fù)寫;摹圖;映寫圖, ...up: adv. (superl. uppermost ) 1. ...plate: n. 1.厚金屬板 〔cf. sheet〕 板(片);( ...instrument steam tracing hook-up: 儀表蒸汽伴熱管連接圖back-up plate: 托模板下載手機(jī)詞典可隨時隨地查詞查翻譯