词汇	cyclic transition state
释义	cyclic transition state 环化过渡态
随便看	vertical union vertical unions vertical unipole vertical unipole antenna vertical unit vertical universal wood milling machine vertical unsteadiness vertical up-and-down movement vertical upgoing wavefield vertical uplift vertical up-or-down movement vertical upright vertical upstream face vertical upward-flow Vertical upward flow channel vertical upward force Vertical upward hole blasting vertical upward welding vertical up welding vertical U-shape heat exchanger vertical u-tube Vertical U-tube vertical U-tube GHEs vertical U-tube underground heat exchanger vertical U-type ground heat exchanger