维持 keep; maintain; preserve; hold 维持生活 support oneself or one's family; 维持现状 maintain the status quo; let things go on as they are; hold fast to the status quo; 维持原判 affirm the original judgement; 维持治安 keep the peace; maintenance of peace; 维持市场 maintain market; 警察在街上维持秩序。 policemen preserve [maintain] order in the streets.; 维持费 cost of maintenance; 维持关税 preserving duties; 维持价 support level; 维持价格 maintenance price; 维持量 maintenance dose; aequum
The harvest of wild species in the oceans and fresh waters of the earth appears to be approaching its maximum sustainable limit . 对地球上海洋和淡水中野生种的捕捞看来已达到其可维持的极限。
Field capacity the point at which the soil contains all the water it can hold by capillary and chemical attraction 田间持水量:土壤通过毛细作用和化学吸力可维持的全部水量。
The focus of the project extension until march , 2003 is to further disseminate lean swine genetics and requisite technology in sichuan , hebei and zhejiang and to ensure that the commercial farms and specialised pig households are able to benefit from the improved genetics and technology in a sustainable fashion 项目延期到2003年3月,主要是为了在四川河北和浙江进一步推广瘦肉型种猪和相关的技术,并确保商品猪场和养猪专业户能够在可维持的情形下从改良的基因和改进的技术上获益。