Cheju韩国济州岛ChEabbr.化学工程师（=chemical engineer）Cheilosporum sagittatumn.箭形唇孢藻chelatometric indicator螯合指 示剂Chelidonichthysspinosusn.小眼绿鳍鱼Chelipoda xanthocephalan.黄头鬃螳舞虻Cheirostylis griffithiin.大花叉柱兰Chezy-Manning formula谢才-曼宁公式Cheung Sha Wan Abattoir长沙湾屠场Chelation effectiveness络合强度Chelonopsis odontochilan.齿唇铃子香chelatometric titration螯合滴定法