1) labor maintenance
劳力力维持
2) soil productivity maintenance
地力维持
1.
In order to study the results of soil productivity maintenance measurements,soil nutrient,soil enzyme activities and soil microbes of intercropping forestland,soil replacing(replacing sand with fertile farming soil) forestland and cultivar-alternated forestland were measured in the field along the Shu River in Juxian County in Shandong Province.
利用田间试验方法,对山东省莒县沭河流域杨树多代经营人工林产区不同林地间作农作物、林地抽沙换土、杨树人工林品种间轮作等措施对杨树人工林多代连作地力维持效果进行研究。
3) maintenance of motive
动力维持
4) Preserving force
维持力量
5) pressure maintenance
压力维持
6) cultural maintenance
文化维持力
1.
It points out that the cohesion of a team, as a system, consists of three subsystems: academic coherence, cultural maintenance and interpersonal dispersal.
本文着重研究了科研团队凝聚力 的系统结构,指出科研团队凝聚力系统由学术内聚力、文化维持力、人际离散力等三个子系统构成, 并由此提出了增强科研团队凝聚力的对策和措施。
补充资料：劳力性呼吸困难
劳力性呼吸困难
系心原性呼吸困难的一种形式。当心力衰竭时，体力活动使静脉回流量增多，加重肺瘀血而产生。发生在劳动时，经休息后缓解。这是鉴定心功能级别的一个重要指标。
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