Concentrically braced frames can provide high elastic stiffness and are widely used.

中心支撑框架具有很大的弹性刚度,在实际中应用广泛.

互联网

Onion - like carbon nano - particles synthesized from phenolic resin have concentrically, quasi - spherically structures and high order.

以酚醛树脂为碳源制备的洋葱 状 富勒烯具有完美的同心 、 准球结构和高度有序性.

互联网