It's breakfast time, and thousands of tilapia are thrashing their tails and sticking their mouths into the air to get some of the soy-and-corn mixture.
现在是早饭时间，几千条罗非鱼拍打着鱼尾，鱼嘴伸出水面，想得到这些由黄豆和玉米混合而成的食物。
Corn fields, old trees, clean air, country roads, and wildlife are all part of the area.
玉米地、老树、清洁的空气、乡村公路以及野生动植物都是这个地区的组成部分。
This paper proposed a kind of cylindric tube air-suction seed metering device suitable for corn precision seeder, introduced the structure and the principle.
提出了一种适用于玉米精播机的圆管式气吸排种装置，介绍了结构和原理。
应用推荐