The happiest teens used digital media a little less than an hour per day.
最快乐的青少年每天使用数字媒体的时间略少于一小时。
They play for no more than half an hour per concert.
每场演唱会，他们至多表演半个小时。
Alternatively you can decide that you will work on the task at least 1 hour per day.
或者你可以每天花1个小时在这份报告上。
They go to social networking sites 5 days per week and check in 4 times a day for a total of an hour per day.
他们每周会访问5次社交网络，每天登录4次，总计在线时间为一个小时。
The bad news is that, even with remote logins, you're still averaging over half an hour per delivered program.
坏消息是，即使有了远程登录，每次交付程序所花费的时间平均下来还是要半个小时以上。
Cablevision’s basic "family cable" package costs $55.95 a month, which works out at most to 37 cents an hour per home.
有线视界的基本家庭套餐是每月五十五圆又九十五分，相当于一户每小时至多花销三十七分钱。
One hour per week is too little to do a job well, and 168 -- the total number of hours in a week -- isn't right either.
每周工作1小时，肯定不可能做好工作；每周工作168个小时——整整一周全天24小时工作——也并不合适。
Through the summer, and as fall began to deteriorate into winter, I would devote about an hour per day to my little job.
整个夏天过去了，随着秋天开始渐渐退去，冬天来了，每天我要把大约一小时时间用在这个差使上。
If one of your goals is to write a book, a simple daily habit would be to work on your book for at least one hour per day.
假如你的目标当中有一个是写一本书，那么你为了写这本书就要有一个简单的日常习惯，至少是每天写一个小时。
Users in China spend up to an hour per day on the sites, compared with less than 15 minutes spent by Americans on YouTube.
中国网民每天在视频网站耗费的时间大概是1个小时，而美国人在YOUTUBE上的时间仅仅为15分钟或更短。
Assuming a 20 hour per day processing window, this gives an archiving volume of up to 240,000 mails per day per Exchange server.
假设每天开一个20小时的处理窗口，那么每个Exchange服务器每天可归档多达240,000封邮件。
For every hour per day spent watching baby DVDs and videos, infants understood an average of six to eight fewer words than infants who did not watch them.
对于每一个小时每天花在看dvd和录影带的婴儿比不看视频的婴儿平均少理解6至8个单词。
Brian Tracy, a best-selling author, points out that just 1 hour per day of reading will make you an international expert in your chosen field within 7 years.
博恩·崔西，一个畅销书的作者，指出每天一小时的阅读，将有助于你七年内在你所选择的领域成为国际专家。
The devices generated roughly 160 microlitres of the hydrocarbons per hour per gram of their titania nanotubes, a rate at least 20 times higher than in previous studies done with ultraviolet light.
每克二氧化钛纳米管可以使这个装置大约每小时生成160毫升碳氢化学物。 这个反应速率至少要快于先前在紫外线下得到的结果20倍。
Seventeen times per hour, to be exact.
确切地说，每小时有17次。
It enables farmers to harvest 175 pounds of green vegetables per hour.
它使农民每小时能收获175磅绿色蔬菜。
We could fly at 480 km per hour, avoiding traffic lights and busy roads.
我们可以以每小时480公里的速度飞行，避开红绿灯和繁忙的道路。
It enables small-scale farmers to harvest 175 pounds of green vegetables per hour.
它使小规模的农户每小时收获175磅的绿色蔬菜。
It flies using a 23 gallon tank of gas and burns 5 gallons per hour in the air.
它使用一个23加仑的油箱飞行，每小时在空中燃烧5加仑。
"An average person, "Roach explains, "will, during the peak flatulence period, pass anywhere from one to almost three cups of flatus per hour."
“一个普通人，”罗奇解释道，“在肠胃最胀气的时候，每个小时会放出1到3杯的的屁。
The human body can absorb no more than about a quart of water per hour, beyond which the brain can swell dangerously, says Dr. Goldfarb.
戈德法布博士称，人体每小时最多只能吸收大约一夸脱水，如果超过这个限度，大脑就会危险地膨胀。
The new beach house on Sullivan's Island should be able to withstand a Category 3 hurricane with peak winds of 179 to 209 kilometers per hour.
苏利文岛上的新海滨别墅应该能够抵御3级飓风，其最高风速为每小时179-209公里。
The most complex engineering project ever attempted has created an enormous set of interlinked modules that orbits the planet at more than 27,000 kilometres per hour.
有史以来最为复杂的工程项目创造了一组巨大的相互连接的模块，其以每小时27000公里的速度绕地球运行。
A mole can dig at a rate of 3.5m per hour.
鼹鼠在一个小时内能挖3.5米深的洞穴。
If you have to cover 12 chapters in American history, begin by planning on three two-hour reviews with four chapters per session.
如果你必须涵盖美国史的12个章节，首先计划3次2小时的复习，每次4章。
We averaged 42 miles per hour.
我们平均时速为42英里。
Top speed is 120 miles per hour.
最高时速为120英里。
The vehicles have a top speed of 80 miles per hour.
这些车的最高时速达80英里。
The vehicles have a top speed of 80 miles per hour.
这些车的最高时速达80英里。
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