基本解釋[機(jī)械工程]球等級(jí)英漢例句雙語(yǔ)例句Rufus: Mm, just in your head. T-ball. First grade. Remember this?恩在你的印象里T球一年級(jí)還記得嗎?。l58bo2y086.blog.163.comJointly launched three brand series of high, medium and low-grade ball-point pen.共同推出三大品牌系列的高，中，低檔圓珠筆。We mainly produce various kinds of high-grade ball-point pen , gel pens and plastic products.主要生產(chǎn)各類中高檔圓珠筆、中性筆、廣告筆、塑料制品和木制筆。ball grade更多例句詞組短語(yǔ)短語(yǔ)Ball Screw Grade 滾珠絲桿等級(jí)ball mill grade 球磨分級(jí)ball grade更多詞組專業(yè)釋義機(jī)械工程球等級(jí)