upkeep operation

常見例句

Efficiency is high , usage cost is low , operation upkeep is simple , operation is reliable.
效率高、使用成本低、操作維護(hù)簡(jiǎn)單，運(yùn)行可靠。
Several companies and organizations contribute to its upkeep and operation. But no one owns the Internet, since anyone with access to a computer can create Web content.
一些公司和組織捐款資助其維持和運(yùn)營(yíng)。但沒(méi)有人對(duì)互聯(lián)網(wǎng)擁有所有權(quán)，因?yàn)橥ㄟ^(guò)一臺(tái)計(jì)算機(jī)上網(wǎng)的人可創(chuàng)建網(wǎng)絡(luò)內(nèi)容。
blog.sina.com.cn
At all times , the primary responsibility of the engineer officer in charge of watch should be safe and efficient operation and upkeep of machinery affecting the safety of the ship .
在任何時(shí)候，負(fù)責(zé)值班的輪機(jī)員的主要職責(zé)都應(yīng)是對(duì)影響船舶安全的機(jī)械設(shè)備進(jìn)行安全有效的使用和保養(yǎng)。