大深径比微小孔
micro and small hole with high-aspect-ratio
电子式微孔隙水压力计
electronic micro pore pressure transducer
介孔-微孔复合材料
meso-microporous composite
介孔-微孔复合分子筛
meso-microporous composite zeolite
微孔隙和微裂纹
micro-holes and microcracks
微孔隙结构
Micro hole structure
Microscopic pore structure