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- A parent fish can breed up to forty thousand offspring. 一条母鱼可产四万多条鱼仔。
- parent fish breeding 亲鱼培育
- Fish breeding in a controlled environment. 养殖渔业。
- Many marine fish breed in Hong Kong waters. 本港海域有多种海鱼栖居。
- Fish bred up in dirty pools will stink of mud. 污池里长大的鱼,总有臭泥味。
- Game on the fishermen in the marine fish breeding season, the total catch seagulls to the sea. Xiaoyuer be allowed to be born t just by the amount of predation. 游戏介绍:渔民们在海洋鱼类繁殖的季节,总要出海捕海鸥,为的是让刚出生的小鱼儿可以不被大量的捕食。
- About 6.70 million ha of rice fields can be used for fish breeding, but the utilization rate at present is only 15 percent. 可供养鱼的稻田670万公顷,利用率仅为15%25;
- The maturity rate of parent fishes was 83 8% in female and 92 1% in male. 雌雄亲鱼的成熟率为83 8%25和 92 1%25。
- In the system,semi-intensive breeding ls the best wayin fresh water fish breeding. 在该系统中,淡水鱼的养殖以半精养方式最佳。
- At present the feed industry and the fish breeding and poultry raising stress point damps the mildew. 目前饲料工业和养殖业的着重点是抑霉。
- About 6.70 million ha of rice fields can be used for fish breeding,but the utilization rate at present is only 15 percent. 可供养鱼的稻田670万公顷,利用率仅为15%25。
- Then a semi-empirical model for ammonia mass transfer rate was built, which helped with predicting membrane size or circulating time in dealing with a fish breeding water. 然后又推导了氨传质速率的半经验模型,该模型可以用来估算特定初始条件下的传质速率,预测处理实际水体所需膜组件的大小或循环时间的长短。
- The complexed breeding struc-ture, water quality management and herbage and other foddercombined techniques in serni-intensive fish breeding are alsodiscussed. 本文还讨论了半精养方式的混养结构、水质管理和饵料组合等配套技术。
- Mullet standard for parent fish and fingerling 梭鱼亲鱼和鱼种
- Nationwide 120 million rural women actively participated in the campaign and have displayed their talents in planting,fish breeding and poultry raising,processing and other fields. 全国有1.;2亿农村妇女踊跃参赛,在种植、养殖、加工等各个领域中大显身手。
- The court is acting in loco parent. 正以家长地位行为的法院。
- "The Classics on Fish Breeding ", written by Fan Li of the Warring States Period (475 B.C.-221B.C.), was the world's first book on fish breeding. Fan started to breed silver carp in 473B.C., and the book was based on his experience. 中国战国时代范蠡所著《养鱼经》是世界上最早的养鱼文献。 范在公元前473年即开始养殖鲤鱼, 并写下这本书。
- Nationwide 120 million rural women actively participated in the campaign and have displayed their talents in planting, fish breeding and poultry raising, processing and other fields. 全国有1.;2亿农村妇女踊跃参赛,在种植、养殖、加工等各个领域中大显身手。
- Cesar Sanchez of Mexico's Commission for Natural Protected Areas emphasizes on the conservation also as an economic imperative because of the wetlands' role as fish breeding grounds. 墨西哥自然保护委员会,凯萨山崔斯强调,自然资源的保护,对经济上也是必要的,因为沼泽地扮演了鱼的繁殖场。
- Fish were surfacing to catch insects. 鱼浮到水面上捕捉昆虫。