“direct labor”的概念、定义、翻译、参考文献-科学参考

单词	direct labor
释义	direct labor [dǝ`rekt `lā·bǝr] ^{INDUSTRIAL ENGINEERING} The labor or effort actually producing goods or services.
随便看	Huhner's test hull Hull cell hulless buckwheat hulsite hum human biogeography human chorionic gonadotropin human community human ecology human engineering human-factors engineering human genetics human geography human immunodeficiency virus human leukocyte antigen human-machine chart human-machine system human measles immune serum human threadworm human T-lymphotropic virus type 1 human T-lymphotropic virus type 2 human T-lymphotropic virus type 3 hum bar Humble gage

科学参考收录了103327条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。