1) fencing lawn
封闭养护
2) curing in airtight condition
密闭养护
3) closed mould curing
闭模养护
4) sealed curing
密封养护
5) Closed polyculture
封闭式混养
6) closed culture
封闭式养殖
1.
This study was conducted for indoor closed culture ponds of Litopenaeus vannamei to reveal change of water quality and nitrogen budgets in experimental pond 1 using model Ⅰ which was the combination of ozone applications, aerator, water purge net and microbe, and pond 3 with model Ⅱ composing of aerator, water purge net, microbe and bleaching powder.
采用模式Ⅰ(臭氧机、增氧机、净水网与复合微生物制剂等)与模式Ⅱ(增氧机、净水网、复合微生物制剂与漂白粉精等)开展室内凡纳滨对虾封闭式养殖试验,探讨了养殖池水质变化规律及氮收支状况。
补充资料:“自由市场”和封闭性的市场
自由市场亦称为开放性市场,是指商品的生产、销售或购买的集中程度不高,其变动主要受市场的自发力量即价值规律的作用支配,商品价格是在相对自由竞争的条件下形成的,但仍在程度不同的受到垄断的影响。
封闭市场是垄断控制型市场,在这种市场上,垄断者竭力限制竞争和供求自发的波动,使商品供求和价格按照自己希望的方向发展变化,获取高额利润。
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