Meanwhile, the long-term US export control on China also embodied the misuse of the clause of Security Exceptions in GATT 1994, which defied the authority of the Dispute Settlement Body ( DSB), spoiled free trading system. 同时,美国长期对中国出口管制,也是对WTO协定有关安全例外条款的滥用,降低了争端解决机构的权威,破坏了自由贸易体制的健康运行。