All the pigs are slaughtered at about 90 kg liveweight . 所有的猪在活重达90公斤左右时宰杀。
2.
An average summer output in excess of 900 kg. liveweight per ha could not have been obtained if there had been a complete reliance on clover nitrogen . 要是完全依靠三叶草的氮，要在夏季获得每公顷草场900公斤以上的活体增重，是不可能的。
