Effect and experimental method on disinfection by chlorinated trisodium phosphate in hospital sewage. water in swimming pool, water in shallow well and river water were studied in laboratory.
本文报告了氯化磷酸三销对医院污水、游泳池水、浅井水、河水的消毒试验方法和结果。
Moreover , i am lord of this trough of water and i stand up tall in this shallow well.
而且,我是这水井的主人,在这浅水井里我高高在上。
Equipped with suitable derrick and well controlled device in drilling a shallow gas well water drills proved to be able to reduce shallow gas well drilling cost.
通过某浅层气井的施工实例,阐述了水井钻机安装合适的钻塔底座和并控装置,可降低浅层气井建井成本。
应用推荐