1) eke out
增补;竭力维持
4) pressurizer
①保持压力装置，增压装置 ②体积补偿器
5) 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。
6) maintenance of motive
动力维持
补充资料：增补
1.增加补充。
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