The test of single compact weightdecrease proved that when the shrinkage ratio of the compacting die is increased to over 1.22, there is no more crack initiated in the compact inner hole.
并用压坯单重递减法试验证实，当将压模收缩比增加到1 2 2以上时，可以保证压坯内孔不出现裂纹。
2
There could be a slight decrease in his weight but he eats too much.
他的体重可能略有下降，但他还是吃很多。
3
Have you lost or gained weight recently within 5% in either direction, and have you noticed a significant increase or decrease in appetite?