The compaction degree test for road bed plainsoil compaction shall be inspected according to stipulations in Standard for Quality Acceptance of Construction GBJ301-88.
路基素土压实的密实度检验按《建筑工程质量检验标准》GBJ301 - 88中的规定执行。
2
The fertile black soil of the Northeast Plain is ideal for growing wheat, corn, sorghum, soybeans, flax and sugar beets.
东北平原大部分是黑色沃土，盛产小麦、玉米、大豆、高粱、亚麻和甜菜。
3
There is large area of high Na salty soil at Songnen Plain in the west of Heilongjiang.