"查查詞典"手機版
千萬人都在用的超大詞匯詞典翻譯APP
- A mathematical model on edge chamfer of back - up roll and its grinding technology
支承輥邊部導(dǎo)角數(shù)學(xué)模型的建立及其磨削工藝 - An investigatoon into failing of nos 368 and 369 back - up roll of the cold rolling mill
武鋼冷軋廠369號和368號支承輥失效原因分析