“net migration rate”的概念、定义、翻译、参考文献-科学参考

单词	net migration rate
释义	net migration rate Encyclopedia 法学人口迁移释 net migration rate净迁移率某地区一定时期（通常为一年）内迁入人数和迁出人数之差与平均人口数之比。用千分数表示。
随便看	tritium generating tritium handling tritium in the environment tritium isotope hydrogeology tritium-labelled compound tritium measurement in environmental water tritium monitoring equipment for radiation protection tritium permeation tritium permeation barrier tritium plant tritium ratio tritium safety tritium self sustaining tritium self-sustaining tritium toxicity tritium unit tritocerebrum tritolyl phosphate poisoning Triton triton tritons trityl radical Triumphal Arch Triumphant in midnight Triumph in the Skies

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