常見例句雙語例句He has repaired the machine for two hours.他修理這臺機器已有兩小時了。He said he stood over a Xerox machine for hours, carefully making copies of each page of the Pentagon papers.他說他當年小心翼翼地把國防部文件一頁一頁復印下來,為此在復印機旁待了幾個小時。The productive capacity is usually expressed in terms of an activity base, such as machine hours, direct labor cost, or direct labor hours.標準生產能力通常表達為機器工時、直接人工成本、直接人工工時等指標。權威例句Buying one machine saved 15 hours a week.FORBES: 200 Best Small CompaniesTo keep an old-style machine running for 24 hours required three shifts and eight hours of a technician's time.ECONOMIST: Genetic warfareThey had one weaving machine that made fabric 24 hours a day, 7 days a week.FORBES: Brazil's 'Poor' Middle Class, And The Poor That No Longer Serve Them 返回 machine hours