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。
The two poems we are looking at today fall into the category of medieval times.
我们今天要看的两首诗属于中世纪分类。
I don't want my students to fall behind the times.
我不希望我的学生落后于时代。
At first, I fell down a few times, but now I seldom fall down.
一开始我摔了几次，但现在我很少摔倒了。
It goes, "Fall down seven times, stand up eight." Basically, it means don't give up.
跌到七次，第八次就可以站起来，意思是不轻易放弃。
Well, the earth is going to fall towards the apple — So the force on the earth is the mass of the earth times the acceleration of the earth.
地球也会坠向苹果-，因此地球上的力与地球的质量相等，再乘以地球的加速度。
It might be painful to watch them fall a few times, but you're going to enjoy how excited they are when they finally learn to do it on their own.
看着他们跌倒会让你心痛不止，不过当他们最终学会骑车时，你将兴奋无比。
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。
In the past 20 years, it has happened only three times - summer of 1998, fall of 2008, fall of 2011.
在过去的20年中，这种情况只发生过三次，分别在1998年夏，2008年秋，以及2011年秋。
Mean quantum time should be close to 500 microseconds, and the maximum quantum times must be monitored to ensure they fall within the acceptable pause times for the RT application.
普通的时间量接近500微秒，而且必须对最大的时间量进行监控以保证它们能够为RT应用程序提供可接受的暂停时间。
I think about that every morning when I wake up, first thing, during the day, I don't know how many times and every night before I fall asleep.
我每天早上想到的第一件事就是那次经历，每天白天和夜晚入睡之前，我想到那件事的次数不计其数。
Even though asteroids of roughly that size fall to Earth a few times a year, the NEO Program telescopes often miss them because the survey is tuned to search for larger, more distant rocks.
即使每年都有几颗类似体积的小行星飞临地球，近地天体项目的望远镜也时常观测不到，因为巡天望远镜是为寻找较大，较远的太空岩石。
After he lost his job he began to fall on difficult times.
他把工作丢掉之后，他就开始陷入经济困境了。
You threaten this, but you've threatened so many times your threats fall on deaf ears.
你这样威胁，但是你威胁了这么多次而从来没有效果。
Several times he broke the engagement off, and she would fall ill, and friends would make peace.
他曾好几次取消了婚约，她因此卧病在床，朋友又劝他俩和好。
Journey times between London and other cities will fall; a capacity shortfall on one of the main north-south rail routes will be avoided.
来往于伦敦和这条线上其他城市间的旅程时间将会缩短；南北铁路线主线之一的线路运营能力不足问题也将避免。
Spaniards traditionally fall back on families for support, housing and jobs at times of crisis.
传统上，西班牙人在危机来临之时会投靠家庭，已获得支持、住房和工作。
This means that ARFM assumes that any two requests that fall into the same service policy have similar response times and CPU requirements.
这意味着，ARFM假设属于同一服务策略的任意两个请求具有相似的响应时间和CPU需求。
The finite number of times we can smell that beautiful smell in the air as the leaves begin to fall and quietly blanket the ground in autumn.
那些在秋天我们能嗅到落叶香味，看着它们逐渐覆盖大地的时光，这一切显得都那么可数。
For those times when grace is lacking and you fall flat on your face in the middle of a room, the true test of your femininity is your ability to laugh it off!
在那些欠缺优雅的场合，你可能站在房间正中面对尴尬的场景，这时最好的女人味就是能够对此一笑置之。
Some admire Spain’s system, which requires banks to make extra provision for losses in good times, so that when loans turn sour their profits and thus capital fall by less.
一些人还对西班牙的制度称赞有加，它要求银行在景气良好的时期为损失提存额外的储备，这样当贷款变糟的时候，他们的利润以及自有资本的损失就会减少。
With Google's medium-term revenue growth likely to fall toward 10%, it is hard to justify paying 25 times 2009 consensus earnings, including the cost of employee stock options.
按照2009年的预期收益衡量，谷歌股票目前的市盈率为25倍，但考虑到谷歌的中期收入增长可能会跌向10%，这样的市盈率水平难说合理，而且还要外加谷歌员工的股票期权成本。
These mass lay-offs, it might be hypothesised, are more like natural catastrophes, such as famines, than isolated accidents that cause a few people to fall on hard times.
从假设上来说，这些大型解雇事件，与影响少数人的事故比起来，更像是饥荒之类的自然灾害。
Moreover, no man knows when his hour will come: As fish are caught in a cruel net, or birds are taken in a snare, so men are trapped by evil times that fall unexpectedly upon them.
原来人也不知道自己的定期：鱼被恶网圈住，鸟被网罗捉住，祸患忽然临到的时候，世人陷在其中，也是如此。
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