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average brightness 平均亮度 average picture level 平均图象电平 averaging 求平均数 avionics 航空电子学 axial betatron oscilations 轴向电子感应加速岂荡 axial etch nonuniform

发表于:2018-12-08 / 阅读(268) / 评论(0)

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发表于:2018-12-13 / 阅读(251) / 评论(0)

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天天练口语：Preparation for a meeting

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发表于:2018-12-26 / 阅读(125) / 评论(0)

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hwThe little black boxes in the aeroplanes provide useful information after a crash has taken place. Now researchers have devised a way to use black box info from planes that do not crash to prevent accidents from never happening. Some airlines alrea

发表于:2019-01-08 / 阅读(142) / 评论(0)

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The little black boxes in airplanes provide useful information after a crash has taken place. Now researchers have devised a way to use black box info from planes that do not crash to help prevent accidents from ever happening. Some airlines already

发表于:2019-01-08 / 阅读(140) / 评论(0)

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发表于:2019-01-14 / 阅读(164) / 评论(0)

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China reforms railway court system

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发表于:2019-02-03 / 阅读(130) / 评论(0)

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发表于:2019-02-06 / 阅读(128) / 评论(0)

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发表于:2019-02-18 / 阅读(162) / 评论(0)

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发表于:2019-02-18 / 阅读(111) / 评论(0)

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发表于:2019-02-25 / 阅读(203) / 评论(0)

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发表于:2019-02-26 / 阅读(126) / 评论(0)

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The air conditioning system has malfunctioned. 441. 空调系统已故障。 We have only one air conditioning pack operational. Request a new cruising level below FL300. 442. 我们仅有一个空调组件运行。请求新的巡航高度低于高度

发表于:2019-03-10 / 阅读(237) / 评论(0)

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