间隙孔 meaning in English

mesopore

Fasteners . clearance hole for bolts and screws
紧固件.螺栓和螺钉的间隙孔
Inserts , with clearance hole , in metallic material , coated or uncoated - dimensions
金属材料制的涂覆或未涂覆的带间隙孔的衬套.尺寸
Iso 273 - 1979 fasteners ; clearance holes for bolts and screws iso 273 : 1979 ; german version en 20273 : 1991
紧固件.螺栓和螺钉的间隙孔
Railway rolling stock . airconditioning . dimensions and clearances reserved for vg - length air conduits
铁路车辆.空调.供vg -长度空气导管备用的间隙孔和尺寸
Considering the kinetic diameter of 2 . 89a for a hydrogen molecule , the inner cavity inside the tubes , the interstitial regions of tube arrays and the empty space between tube walls are the hydrogen adsorption sites . thus , the high hydrogen storage capacity in cnts would be available
氢分子动力学直径是0 . 289nm ，单壁碳纳米管的中空管内腔和管束内的间隙孔以及多壁碳纳米管的中空管和管壁间隙都可以作为储氢的吸附位，因此碳纳米管具有良好的储氢性能。