1) necessary operation
必要动作
2) unnecessary operation
不必要动作
3) necessary labor
必要劳动
1.
There s no doubt that two kinds of socially necessary labor work together to decide the value.
商品价值量的大小是不是由两种社会必要劳动时间来决定，始终象一个谜团一样，困扰着学术界。
2.
The so-called of "the dual meaning" of "social necessary labor time" is imposed upon Mark by other people.
所谓"社会必要劳动时间"的"第二重含义"是人们强加给马克思的,马克思的论述中只存在"必要劳动时间"的"另一种意义"。
4) necessary labour
必要劳动
1.
"One important thing about this is to deepen the understanding of the necessary labour, and tounderstand what Marx said on necessary labour according to the relationships of value creation, necessary labour andsurplus labour.
江泽民同志在“七一”重要讲话中提出“深化对社会主义社会劳动和劳动价值理论的研究和认识”，符合马克思主义创始人的本意要求；深化对劳动和劳动价值论的研究和认识中的一个重要问题是深化对必要劳动的认识，必须遵循坚持与发展原则，从价值创造角度及从必要劳动和剩余劳动的相互联系中深化研究和认识马克思所讲的必要劳动。
5) cooperate necessity
合作必要性
6) necessary evils
必要的作恶
1.
As regards the ethic principle of animal slaughter, the demand for and the number of slaughtered animals should be minimized; but for the survival and health of human beings, we have to slaughter animals, which is the evil we have to do; and necessary evils done by mankind are not, however, evils; for there is good in rational evils.
必要的作恶不算作恶,理性的作恶恶中有善。
补充资料：必要劳动
劳动者为了维持自己和家属的生活所必须付出的那一部分劳动（跟‘剩余劳动’相对）。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条