Sefid Rud Dam, Iran (1990) – concrete buttress
赛非德•鲁德大坝，伊朗（1990年）---混凝土扶壁坝
Rational use of drugs (RUD) is an eternal subject.
合理用药是永恒的话题。
The study on classification and distribution of genus spiraea in Hebei province was carried out when the author compiled "Spiraea" in " Flora sh-rud Hebei" .
作者在编写《河北灌木志》绣线菊属时，对采于河北境内的本属植物标本进行了分类与分布研究。
The study on classification and distribution of genus spiraea in Hebei province was carried out when the author compiled "Spiraea" in " Flora sh-rud Hebei" .
作者在编写《河北灌木志》绣线菊属时，对采于河北境内的本属植物标本进行了分类与分布研究。
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