... 维生系统 life support system 维修废弃物maintenance waste 尾柄；尾鳍 caudal peduncle ...
双语例句
1
San Francisco's Public Utilities Commission knows the exact co-ordinatesd of every waste-water pump, its maintenance history and the likelihood of it failing.
圣弗朗西斯科的公共事业委员会清楚每条废水管道的精确坐标，维修记录，和出现故障的可能性。
2
They experience stress, waste time, and pay a lot for gas, car maintenance, and parking.
不仅神经高度紧张，浪费时间，还要为汽油、维修和泊车花一大笔钱。
3
Especially do not disorderly domestic sewage and litter production waste garbage, pay attention to factories around the environment maintenance.