unstable soil

I live in cold mountain areas in Yunnan, poor soil, low and unstable income.

我家住在云南的高寒山区, 土壤贫瘠, 收入少且不稳定.

Who lives in cold mountain areas in Yunnan, poor soil, low and unstable income.

家住在云南的高寒山区, 土壤贫瘠, 收入少且不稳定.

unstable soil with potential to fall into excavations and injure workers.

不牢固的土方将可能掉入开挖区内并伤及工人。

poured concrete retaining walls work well where heavy or unstable soil and steep slopes make other walls inadvisable.

现浇混凝土挡土墙以及在繁重的工作或不稳定的土壤和陡坡作出其他墙壁不明智的。

The results show that the material basis is unstable geomorphology, shallow soil, coarse particles of soil, gravel, poor soil consolidation, erodible soil.

结果表明：地质、地貌不稳定，土层浅薄，土壤颗粒粗化、石砾化，土壤固结力差，抗冲蚀力弱，是草地退化的物质基础；