biotic crust

• 生物结皮

biotic crust的用法和样例：

例句

1. The microbiotic soil crust could create the microenvironment that was suitable for plant growth on the abominable environmental condition and unstable soil.
   在风蚀环境条件和不稳定的土壤条件下，生物结皮的出现可创造适合植物生长的微环境，为植物的生长提供了条件。