柔性管道便于在紧凑的空间安装.Flexible tubing can assist in installation in tight space.写文章的时候, 他们喜欢采用紧凑的结构.As writers, they like a structure that is compact.低重心设计和紧凑的结构使他拥有完美的表现.Amazing performance for a reel with a low - profile , co...
全国各地牧场对套种谷物的选择都不相同.Farmers'preferences for a companion cereal vary over the length and breadth of the country.由单一种植向间作套种的立体农业转移.By onefold cultivate the stereo agriculture move to intercropping interplanting.果园内实施多熟...