The special physicochemical environment caused by sonic-vacating provides an important outlet for the preparation of highly efficient luminescent porous silicon films.

声空化所引发的特殊的物理、化学环境为制备高效发光的多孔硅薄膜提供了一条重要的途径。

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At the same time, the improvement of physicochemical properties of soda alkali-saline soils has created the good soil environment for the crops growth.

同时，苏打盐碱土理化性质的改良也为作物生长创造了良好的土壤环境。

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