清华山
清华山-
清华山维数字化地籍测量软件的应用
Application of Tsinghua 3D Digital Cadastral Survey Software
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因此，弄清华山松健康植株和感染疱锈病的植株（以下简称感病植株）上的树栖真菌种类、数量和动态变化对华山松疱锈生物防治中重寄生菌的定殖相当重要。
So the kind , quantities and changes of dendrocola fungi on healthy and infected ( by Cronartium ribicola ) Pinus armandii are very important to the growth of the mycoparasites .