介绍大齿轮高精度圆锥孔小余量进行修复的加工方法。
Repair machining methods for the high precision taper bore with small machining allowance have been described.
储层以低孔渗、低含水饱和度、孔喉体系多具有中孔小喉为特征。
The reservoirs are characterized by low porosity and permeability, low water saturation, and the mesoporous and small throat system.
他们能做各种颜色的羊毛绳，非常好看。他们用六孔小笛吹各种山歌。
They make very pretty woollen cords of various colors, and they play the mountain AIRS on little flutes with six holes.
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