基本解釋[交通運(yùn)輸工程]必要的作業(yè)英漢例句雙語(yǔ)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)。但沒有人對(duì)互聯(lián)網(wǎng)擁有所有權(quán),因?yàn)橥ㄟ^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.cnAt 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)。upkeep operation更多例句詞組短語(yǔ)短語(yǔ)vehicle upkeep operation 車輛技術(shù)保養(yǎng)operation and upkeep in one 營(yíng)維合一upkeep operation更多詞組專業(yè)釋義交通運(yùn)輸工程必要的作業(yè)