Chekan.<俄>契卡("肃反委员会"的俄语缩略语)
ChEabbr.化学工程师(=chemical engineer)
Chelipoda lyneborgin.林氏鬃螳舞虻
Chebshev polynomial切比雪夫多项式
chelerythridimerine白屈菜红默碱
Chelonopsis souliein.轮叶铃子香
Chelating cellulose螯合棉纤维
Chelipoda petiolatan.柄腹鬃螳舞虻
Chesapeake Bay Group切萨皮克湾大队