The livestock sector is probably the largest source of water pollution, contributing to eutrophication, 'dead' zones in coastal areas and degradation of coral reefs.
畜牧业很可能是水污染的最大来源,造成富营养化、沿海地区出现“死区”和珊瑚礁退化。
Dead-time effects can be regarded as a kind of space-vector, which is determined by two factors: sector number and direction of phase current.
死区效应可被视为一种空间矢量,它由两个因素决定:扇区数和相电流方向。
This is because with the poisoning caused by eating raw beef, the Japanese health care sector in the stomach in the detection of dead and injured out of the hemorrhagic E. coli 0111.
这一起中毒事件是因为吃了生牛肉引起的,日本卫生保健部门在死伤者的肠胃中检测出了出血性大肠菌0111。
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