The formula of the carrying capacity of beam of a round section is given in China's design standard of reinforced concrete.
圆截面受弯构件是工程结构中常遇到的一种构件，现行的钢筋混凝土规范给出了圆截面梁全截面均匀配筋的计算方法。
Dynamic modulation of laser and laser bean, and offset to target reflection coefficient: laser bean is shaped and collimated to round and slender beam by using of the semiconductor laser.
激光器件及激光束的动态调制，目标反射系数补偿：采用半导体激光器，经过整形、准直成圆细光束。
A beam of light will not bend round comers unless made to do so with the help of a reflecting device.
A除非有反射装置的帮助，使得光线在拐弯处弯曲，否则光线是不会弯曲的。
A beam of light will not bend round comers unless made to do so with the help of a reflecting device.
A除非有反射装置的帮助，使得光线在拐弯处弯曲，否则光线是不会弯曲的。
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