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- It increases oxygen simultaneously by using an electric motor to drive the impeller and raises the breeding density. 本产品用一台电动机带动叶轮同时增氧,提高养殖密度。
- Effect of different fodders and breeding densities on the larva growth and development of Tenebrio molitor L. 饲料种类和饲养密度对黄粉虫幼虫生长发育的影响。
- Keywords Musca domestica larva;Breeding density;Diet;Photoperiod; 家蝇幼虫;饲养密度;饲料;光周期;
- Keywords Acaroid mites;breeding density;diversity;Hefei City; 粉螨;孳生密度;多样性;合肥;
- The islanders are a strong breed of people. 这些岛上的居民是一种体格强壮的人。
- Of this breed we can make short shrift. 这个品种,我们能很快解决。
- Spaniel is a breed of dog with large ears. 西班牙猎狗是一种长着大耳朵的猎狗。
- Wild animals don't breed well in captivity. 野生动物圈养时不好繁殖。
- Birth is much, but breeding is more. 出身重要,教养更重要。
- Many animal breed in the spring. 很多野兽在春天繁殖。
- Random mating within a breeding population. 自由交配在一个育种群中自由交配
- The density of population in this city is very high. 这个城市的人口密度非常高。
- They used to breed fish in the reservoir. 他们过去一直在水库养鱼。
- We have the finest breed of sheep. 我们拥有最优品种的羊。
- A large sheep of a breed originating in England. 汉普夏羊产自英格兰的大个绵羊
- Suited to one of good breeding; refined and polite. 有教养的,有礼的与良好教养相称的; 优雅的,礼貌的
- The area had a population density of five people per square mile. 该地区人口密度为每平方英里五人。
- One of a breed of small, black dairy cattle of Irish origin. 克立牛一种产于爱尔兰的黑色小乳牛
- The density goes down exponentially with height. 分子密度随着高度的上升而指数衰减。
- The population density is evened out. 种群密度亦趋于均匀化。