percentage reduction of area 断面收缩率 ; 面积收缩率
reduction of area at fracture 断裂时断面收缩率
Reduction of diffusion membrane area 肺泡膜面积减少
area-reduction of storm 暴雨点面关系
By forging,primary normalizing and high temperature tempering,the reduction of area of a 45 steel magnetic yoke for electric machine was lower. Metallography observation indicates that slight banded structure exists in the steel magnetic yoke body.
某45钢电机磁轭锻造+一次正火+高温回火后断面收缩率偏低,金相观察发现在磁轭本体有轻微带状组织,返修件经二次正火+高温回火,消除了带状组织,断面收缩率达到了技术要求。
参考来源 - 45钢电机磁轭带状组织的消除与预防·2,447,543篇论文数据，部分数据来源于NoteExpress
The consequences of an excessive number of livestock grazing in an area are the reduction of the vegetation cover and the trampling and pulverization of the soil.
在一个地区过度放牧的后果是植被覆盖的减少和对土壤的践踏和粉碎。
The tricky part is balancing debt reduction activities and new development activities that touch on the same area of code.
麻烦的部分就是平衡债务减少活动和涉及相同代码区域的新开发活动。
They are now demanding a big reduction in the stipulated area of tree cover on private land.
现在，他们要求对私人用地的树木覆盖率进行大幅削减。
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