As U.S. aviation safety-related regulatory evolutions go, 2013 will be remembered as a monumental year for pilots. Sweeping sets of new rules hit the books, revamping training standards and minimum qualifications for all U.S. airline pilots. While 2014 isn't expected to bring comparable change on the maintenance side, a few rules are set to pop that could keep repair stations and technical operations divisions busy.
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机译：完整的 O （ α s 2 ） 对结构函数 g 1 ， 2 < / mml：mrow> e p （ x ， Q 2 ） ， F 1 ， < mml：mn> 2 ， L e p （ < mml：mi> x ， Q 2 ） ， F 1 ， 2 ， 3 ν （ ν ˉ ） （ x ， Q 2 ） 和相关的求和规则
