regional distributive laws 区域分异规律
Studies of energy spectrum analysis on the absorption and distributive laws of nutrient elements in sucking roots of ginkgo biloba l.
银杏吸收根营养元素吸收及分配规律的能谱分析。
Based on the regional distributive laws of natural hazards and economics in Hebei province, the principles, methods and index systems of Hebei natural hazard regionalization have been advanced.
根据河北省自然灾害的区域分异规律和社会经济状况,提出了河北省自然灾害区划的原则、方法指标体系,进行了自然灾害区划,并对不同灾害区提出了防灾减灾对。
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