B 開頭單詞
ball guide screw drive [機(jī)械工程]滾珠絲杠傳動(dòng)
ball gudgeon 球體耳軸
ball grip [交通運(yùn)輸工程]球狀手柄
ball grinding mill [機(jī)] 球磨機(jī)
ball grinding machine [經(jīng)濟(jì)學(xué)]鋼球磨床
ball grinder 球磨；[機(jī)] 球磨機(jī)；[機(jī)] 球磨床
ball granite [地球科學(xué)]球狀花崗巖
ball grade [機(jī)械工程]球等級(jí)
ball gown 舞會(huì)袍
ball governor 旋轉(zhuǎn)球調(diào)速器
ball goes in to play [體育]球進(jìn)入比賽狀態(tài)
ball gear shift lever [交通運(yùn)輸工程]環(huán)座式換檔桿
ball game 局面；球類運(yùn)動(dòng)；活動(dòng)中心
ball fringe [經(jīng)濟(jì)學(xué)]球形穗飾
ball forming rest [交通運(yùn)輸工程]車球刀架
ball forming mill [經(jīng)濟(jì)學(xué)]成球機(jī)
ball float valve 浮子閥 浮球閥
ball float type trap [交通運(yùn)輸工程]浮球式泄水活門[地球科學(xué)]浮球式泄水活門