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- Depopulation Methods for a Commercial Layer Flock 商业化鸡群清群法
- The immune surveillance and pullorum quarantine have been conducted in layer flocks of a poultry breeding farm in Guizhou province. 通过对贵州省某种禽场蛋鸡群进行的免疫监测和白痢检疫,结果表明,在3个被检的蛋鸡群中,鸡白痢的隐性感染率分别为69%25(2/29)、193%25(6/31)、0%25(0/41)。
- He boarded up the flock of chickens. 他用板把那群小鸡圈了起来。
- A flock of sheep poured through the gate. 一群羊从羊圈口涌了出来。
- In the forest, we came upon a flock of pheasants. 在森林里我们碰到一群雉鸡。
- We saw a flock of geese swimming in the lake. 我们看见一群鹅在湖里游水。
- A flock of wild geese flew overhead. 一群野鹅从头顶飞过。
- A flock of customers waited for the store to open. 一群顾客等著商店开门。
- This layer of rock contains a lot of flint. 这一岩层中有大量燧石。
- A diagnosis of Marek's disease co-infected with bacteria in commercial layer flock 商品蛋鸡群马立克氏病与细菌性混合感染的诊断
- In the summer, tourists flock to the museums and art galleries. 夏季游人成群结队到博物馆和艺术馆参观。
- The inner layer of the wall of a spore. 孢子内壁孢子壁的内层
- There is a fine layer of dust on the desk. 桌子上有一层薄薄的尘土。
- The middle, usually fleshy layer of a fruit wall. 中果皮果皮中间通常含肉较多的那一层
- The bottom layer is a mixture of sand and clay. 最下面的一层是沙和泥的混合物。
- A flock of gulls circled overhead as the boast sailed into the port. 船只驶入港口时，一群海鸥在船上方盘旋。
- A fine layer of dust covers everything. 所有的东西都盖了一层薄薄的灰尘。
- The shepherd re-collect his flock. 牧人重新聚集起他的羊群。
- A layer, as of doubled-over cloth or of paperboard. 一层一层，如折叠过的布料或纸板的
- A surface, layer, or mass of frozen water. 冰面冻结的水的面、层或块
