Output rise and fall times are TTL compatible and independent of pulse duration.
输出上升和下降时间ttl兼容和脉冲持续时间无关。
Other features include a short propagation delay of 28 ns (typical), fast rise and fall times, and supply rail under-voltage lockout.
其他功能还包括28纳秒(典型值)，快速的上升和下降时间很短的传播延迟，以及电源轨欠压锁定。
showed that if global emissions do not peak and begin to fall by 2020, keeping the global average temperature rise since pre-industrial times below 2C will be difficult.
《自然—气候变化》期刊周末发表的一项研究表明，如果全球排放到2020年没有达到峰值并开始下降，将很难使全球平均气温自前工业时代以来上升幅度保持在2度以内。
Unlike mice, humans are not nocturnal, so their XPA levels rise and fall at different times.
与老鼠不同，人类不在夜间活动(译注：误xd)，所以我们的XPA水平升高和降低的时段也不同。
In the decline and fall times, Macedonia, a city-state, rise to form the overwhelming military supremacy. A century later, the Greek was incorporated into Roman territory.
衰亡时代，马其顿城邦崛起，形成压倒性的军事霸权。百年后，希腊并入罗马版图。
From the middle period of 19th century to on the eve of the Cold War, Jew circumstances were experienced to rise and fall several times in Russia and in the Soviet Union.
从19世纪中叶到冷战爆发之前，犹太人在俄国和苏联的处境经历了几次起伏不定的变化。
From the middle period of 19th century to on the eve of the Cold War, Jew circumstances were experienced to rise and fall several times in Russia and in the Soviet Union.
从19世纪中叶到冷战爆发之前，犹太人在俄国和苏联的处境经历了几次起伏不定的变化。
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