hollow quoin 牐門墩hollow quartz fiber [經(jīng)濟(jì)學(xué)]空心石英纖維hollow punch n. 沖孔機(jī)；空心沖鏨hollow porous brick [機(jī)械工程]多孔性空心甎[土木建築工程]多孔性空心甎hollow plastic lens [物理學(xué)]空心塑料透鏡hollow pipe 空心琯hollow pin 套銷hollow out vt. 挖空（挖洞；開鑿）hollow organ 中空瀑；中空器官hollow niobium sphere [能源科學(xué)技術(shù)]空心鈮球hollow metal sealing ring [經(jīng)濟(jì)學(xué)]空心金屬密封環(huán)hollow man 虛偽的人；不誠實(shí)的人hollow lightweight aggregate concrete [交通運(yùn)輸工程]大孔輕骨料混凝土hollow heading machine n. 空心打頭機(jī)hollow gravity dam [水利工程]空腹重力垻空心重力垻hollow glass-bead [化學(xué)]空心玻璃微珠hollow glass fiber [材料科學(xué)]空心玻璃纖維空心球玻璃纖維hollow glass 中空玻璃；凹窩載玻片hollow fusee 空心均力圓錐輪hollow focused laser beam [物理學(xué)]光學(xué)渦鏇