Chekan.<俄>契卡("肃反委员会"的俄语缩略语)ChEabbr.化学工程师（=chemical engineer）chelating dispersant螯合分散剂Cheyne-Stokes sign[医] 陈-施二氏征, 潮式呼吸Chegger's Party QuizChexapeake formation［地质］切萨皮克层chebyshev inequality切比雪夫不等式Cheung Pei Shan Road象鼻山路Chelipoda menglunanan.勐仑鬃螳舞虻chelitis exfoliativa剥脱性唇炎chelatropic reaction螯合反应Chelonopsis giraldiin.小叶铃子香