Most species live off aquatic snails.绝大多数种类以吃螺为生。Aquatic sports include swimming and rowing.水上运动包括游泳和划船.Visitors can view a rich and colorful array of aquatic plants and animals.游客们可以看到一系列各种各样、色彩斑斓的水生动植物。...
芳烃加氢饱和及开环反应是一种提高柴油十六烷值的有效途径.Its hydrogenation activity in aromatics saturation and ring opening activity were investigated.合成的正十六烷糖 ( sr123781 ),显示良好的抗凝血活性.A synthetic hexadecasaccharide. ( SR 123781 ) that displays exce...
匹配负载阻抗之传输线上无反射.No reflection will appear on a line with matched load.研究弱激光驻波场中的无反射势阱.The reflectionless potential well affected by a standing laser field is studied.光线被黑面吸收(而无反射).Light rays are absorbed by black surfaces...