其垂直分布幼虫主要集中在离土表6厘米内，土茧95 %以上分布在离土表3厘米内，幼虫结茧有向上爬习性。
The vertical distribution shows larvae are mainly distributed within 6 cm below the soil surface, and 95 percent of the cocoons crowd within 3 cm below the surface.
倒土、回填、挖坑、修坡、找平、压实、装车、爬托盘等。 在校期间让每位学员学会以上项目。
After training, you can master the skills of soil dumping, backfill, digging, grading, leveling, compacting, loading and crowding.
应用推荐