upkeep operation

基本解釋

Efficiency is high , usage cost is low , operation upkeep is simple , operation is reliable.
傚率高、使用成本低、操作維護簡單，運行可靠。
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營。但沒有人對互聯(lián)網(wǎng)擁有所有權(quán)，因爲通過一臺計算機上網(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 .
在任何時候，負責(zé)值班的輪機員的主要職責(zé)都應(yīng)是對影響船舶安全的機械設(shè)備進行安全有傚的使用和保養(yǎng)。