第三: third周期: period; cycle; circle; revol ...订正第三周期指规数: revised third cycle ipfs在第三周: in the third week三周期函数: triply periodic function三周期伴流网格: three-cycle wake screen三周: take two or three weeks off work高二英语第三周周测: moduel5 unit1三周刊: triweekly三周跳: triple twist三周下: triple flyaway第三: third◇第三帝国 [德国] the third reich (1934-1945); 第三 (层)楼 [美国] third story; [英国] second story; 第三宇宙速度 third cosmic velocity (物体具有每秒16.7公里的速度时, 可以脱离太阳系而进入其它星系)后空翻三周: triple backs借书三周: keethe books for weeks空翻三周: triple full抛三周跳: throw triple loop三周年纪念: triennial三周一次的: triweekly三周以内: within weeks施行三周年: safety package for the dangerous chemicals转体三周: triple turn周期: period; cycle; circle; revolution; round; complete alternation 产业周期 industrial cycle; 经济周期 economic cycle; 商业周期 business cycle; trade cycle; 生产周期 production cycle; 再生产周期 cycle of reproduction; 缩短恢复周期 shorten the period of convalescence; 固有周期 natural period; 延长支付周期 extend a payment period; 昆虫的生活周期 the life cycle of insects; 工作周期 action cycle; 周期变化 periodic change; periodic variation; 周期表 [化学] periodic table; periodic chart; 周期律 [化学] periodic law; law of periodicity 臂立翻腾三周: armstand tripe somersault臂立反腾三周: armstand triple somersault四月三周两天: 4 months, 3 weeks and 2 days; four months three weeks and two days