短語(yǔ)詞組短語(yǔ)d helical profile surface 三維螺鏇齒廓曲麪helical curved surface 螺鏇曲麪Hyperslender helical -surface 超細(xì)長(zhǎng)螺鏇曲麪helical shaped surface plates 螺鏇形狀表麪極板helical -surface of the screw 螺桿加工mouldboard with helical surface 螺鏇型犁壁 返回 helical surface