smooth hole

The two aminos of amine template favor to act with Zn2+ form uniform and relatively smooth ZnS holey nanospheres, while hydroxyethyl took disadvantage. Reasonable mechanism of hole by H2S rushing out was suggested.

胺模板剂的两个氨基有利于与Zn2+作用而形成均匀、相对光滑的有孔ZnS纳米空球，引入羟乙基则不利，提出了由H2S冲出形成孔的合理机理。

The machining includes drilling hole, machining inner conic hole, boring and trimming for smooth connection.

第二、机械加工:打孔及加工内锥孔,再用专用模 、 夹具钻孔, 镗孔成型,然后修整外形至光滑连接.

The results showed that the soybean protein fiber possessed non-smooth, groove, bubble-shape foreign substance and remoteness hole in longitudinal direction;

研究表明，大豆蛋白纤维纵向形态不光滑，表面有沟槽，夹杂星点泡状物，有细微孔隙；

Smooth Blasting Technique with Large Diameter Bore Hole Used in Rock Excavation for High Slope

大孔径光面爆破技术在高边坡岩体开挖中的应用