SECE安全电子商务环境SECadj.(香槟酒等)无甜味的abbr.第二的(=second)；（=U.S. Security and Exchang Commission） 美国证券交易委员会securities and margin financing businesses融资融券Securities Industry Automation Corporation证券业自动化公司securities investment disputes arbitration证券投资纠纷仲裁Securities Instruction Transmission System保密指令传送系统securities industries communication system安全产业通信系统, 保密工业通信系统Securities - Institutional delivery system公共证券机构的交付体系securities transaction responsibility reserve证券交易责任准备金sec-butyl-cis/trans-l-propentyl disulfide指纹图谱