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。

GENIE: When you rud the magic lamp, I will give you four wishes.

当你擦亮神灯，我将给你四个愿望。

The tool wear mechanism is studied by using a digital microscope to observe the topography of the diamond tool in RUD of advanced ceramics.

通过使用数字显微镜跟踪观察旋转超声钻削过程中金刚石工具表面形貌变化，研究了旋转超声钻削先进陶瓷过程中的工具磨损机理。

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。