Maintenance of reservoir pressure
[经] 保持油层压力
🧩 词语组成解析
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
🗣️ 情景例句
What does that mean when he goes,
他发出的声音代表什么意思
I haven't the slightest idea.
我一点儿都不知道。
A parliamentary committee representing all political parties appoints a person who is suitably qualified to investigate private grievances against the State.
议会内有一个代表各政党利益的委员会，由它委派一位称职的人选专门调查个人对国家的意见。