hollowfoot秕谷hollowadj.空的；空洞的；凹陷的；虚伪的；(声音)沉闷的n.山谷；洞；窟窿vt.挖空vi.形成空洞adv.完全地；彻底hollow-core photonic crystal fibers空芯光子晶体光纤hollow reinforced concrete shear wall空心钢筋混凝土剪力墙hollow fiber ultrofiltration membrane中空纤维超滤膜hollow opposite roller type-machine空心对辊机hollow organ containing refined juice中精之腑hollow fiber ultrafiltration membrane中空纤维超滤膜Hollow- shaft hydraulic rotary motor中空液压马达hollow extruded aluminum alloy profile中空铝合金型材Hollow Wall Pipe series specifications中空壁缠绕管系列规格hollow fiber semi-permeable membrane中空纤维半透膜