maintenance pit

基本解釋

The only way of overcoming the problem is by opting for dedicated earthing to the machine and by regular maintenance of earth pit.
避免這個(gè)問題的唯一方法是選擇機(jī)床專用的接地線并定期維護(hù)接地點(diǎn)。
nhmould.cn
The mainly keystone is:excavation and maintenance groudsill pit, propping up pond wall moulding board and casting pond wall concrete.
包括基坑開挖支護(hù)，支池壁模板和池壁混凝土的澆筑。
The paper emphasizes:checking safety computations of armor plate piles, preventing and disposing quicksand during excavation and maintenance groudsill pit;
重點(diǎn)論述：基坑開挖支護(hù)中，鋼板樁支護(hù)的安全性驗(yàn)算及流沙的防止與處理；

An important appeal was also heard for a concerted effort to recruit, train and retain the personnel needed to manage large-scale construction programs that will be essential if the Nation is to meet future plutonium "pit" manufacturing, tritium and other requirements associated with the maintenance of a safe, reliable and effective nuclear deterrent.
CENTERFORSECURITYPOLICY: Center For Security Policy