3h是三小时的意思。h是英文hour的缩写，hour就是小时的意思。例句：There are typically two 3-hour meetings per day.一般情况下每天有两场3小时左右的会议。
3h的意思：
三个小时
短语：
a 3-hour journey 一次3小时的旅程
例句：
1.Suddenly things started to make sense. But would the same workout apply to a 3 hour marathoner?
一瞬间事情就清楚了，但是这对3小时的马拉松选手也适用吗？
2.During my 3 hour drive back home, I got to thinking about this phrase and what it could mean. I finally came up with the following summarisation.
在开车回家的三个小时里，我想了又想，并猜测其真正含义，最后得出了下面的结论。
3.The American children usually spend 3 hour watching TV every day, but our Chinese children should spend the most time after school doing the homework.
美国孩子通常每天花3个小时看电视，而中国孩子必须将放学后的大部份时间用于做家庭作业。
4.I am hopeful that it will renew interest in stroke and give many people who have just missed the 3 hour window an opportunity for treatment.
我希望这个建议可以改变人们对卒中的认识，给许多超过3小时时间窗的患者一个治疗的机会。
5.They have searched the Internet for 3 hour for the information.
他们花了三小时在网上查找那个信息。
6.The efficacy of the proposed method is extensively tested on more than 3 hour of CCTV news programs and 95.4% recall with 96.1% precision have been achieved.
用来自中央电视台的3个多小时的新闻视频所做的镜头边界检测实验获得了95.4%的查全率和96.1%的准确率。
7.Today, my kids decided putting laxatives in my coffee would loosen me up and calm my nerves. I have a 3 hour long meeting soon.
今天我的小孩在我的咖啡里放了泻药，他觉得这样可以缓解我的压力和慌张。我马上要参与一个长达3小时的重要会议。
8.There is typically a 0-3 hour outage of imagery each day as GOES progresses through eclipse season.
在整个星蚀季节每天通常有这样0 - 3个小时的停机。
9.The removal rate is 85% after 3 hour. The efficiency is constant in operating.
三小时的去除率达到了85% ，而且可以连续使用，效率不变。
10.I have this 3 hour test at 7:30am and didn't get any sleep.
我明天早晨7点半有个3小时的考试，到现在一点都还没睡着。
11.It is 4 km far from Jiandou Exit of to-be built Shuangyong Expressway. After being opened to traffic, it is only 3 hour's drive to Fuzhou.
距即将兴建的双永高速路剑斗出口站4公里，通车后，距福州仅3小时里程。
12.Even over a 2-3 hour meal, the wine continues to impress and evolve, showing none of its 51 years of age. Amazing wine that is still intense and alive.
即便经过了两三小时，酒款还是持续变化，一点也没有51岁老态龙锺的模样，还是相当浓郁而鲜活。
13.There are typically two 3-hour meetings per day.
一般情况下，每天有两场3小时左右的会议。
14.Under Guinness rules, he was allowed a 15-minute break after each 3-hour set and a 30-second pause in between songs.
根据吉尼斯官方针对此项纪录设定的规则，他可以在每演奏3小时后休息15分钟，并在变换曲目时停顿30秒。
15.A single, 3-hour charge of the Hanebrink's battery will get you a 100-mile riding range over concrete, sand, dirt or snow.
单次充3小时后的电池能够让你骑行100英里，包括混凝土、沙地、土地或雪地等多种地形。
