It produces a poor surface finish; tool wear is high.
它生成很差的表面光洁性且刀具磨损非常大。
However, in case of ductile materials they cause poor surface finish and low tool life.
可是在塑性材料加工时，造成表面光洁度和刀具寿命低。
Poor tooth surface impacts the horse's capability to maintain a proper weight.
牙齿表面的状态不好，会导致马难以维持恰当的体重。
Anthracite char has poor pore structure and small specific surface area.
无烟煤焦分支孔贫乏，比表面积很小。
Runway surface wet, braking action poor.
跑道湿，刹车效果差。
Runway surface wet, braking action poor.
跑道湿，刹车效果差。
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