The half-point differencing method is used to get more accurate results.
为使计算结果更加准确,采用了半点差分格式离散。
After looking at it for half an hour,
看过半个小时以后，
Half an hour later, we were at Montmartre.
半个小时以后，我们到达蒙马特公墓。
He’d been speaking for half an hour before I cottoned on to what he meant.
听他讲了半个小时以后我才明白了他的意思。
I go on duty in half an hour.
半小时以后我要去值班。
He said he would check back in half an hour.
他说半个小时后再联系。
After we have walked along at a rapid pace for about half an hour, Frate suddenly comes to a halt.
我们快步往前走了大约一个半小时以后，弗雷特突然停住了。
So the train leaves in about half an hour.
所以这趟火车大约半小时后离开。
It'll is rain in about half an hour, I think.
我想半小时以后会下雨的。
Place your bets now-the race begins in half an hour!
现在可以下赌注——赛事于半小时后开始。
This class will remain in for half an hour after school.
放学后，这个班要留校半小时。
In about half an hour. I want to get away before the traffic gets bad.
半个小时后。我想在交通拥挤之前离开。
I can knock off a poem if half an hour.
我用半个小时就可以匆匆写出一首诗。
and after half an hour's nap you'll watch the news on TV!
之后打半个小时的盹，然后收看电视新闻。”
Parties were able to elude each other for the space of half an hour without going beyond the "known" ground.
小队的人可以互相闪避，半个小时内不会迷路。
I' ll check back in half an hour and let you know what' s been decided.
半个小时后我再和你联系，把作出的决定通知你。
He was late for the film for all of half an hour.
电影开始了足足有半个小时后，他才来到。
She arrived one and a half hours late and spun (me) a yarn about her being ill.
她迟到一个半小时，然后对我撒谎说她病了。
After only 90 minutes on the road, he felt nauseated and fatigued.
上路一个半小时后贤哥感觉很虚并且想吐。
