基本解释[经济学]设备台时费用英汉例句双语例句Supplier B has a $75,000 machine and he figures a cost of $8.45 for the machine and labor at $12 per hour.供应商B的生产部件的机器价值7.5万,其使用机器成本为美金8.45/小时,人力成本美金12/小时。www.szrc.net.cncost per machine hour更多例句专业释义经济学设备台时费用