自1951年以来，在职的已婚女性的比例已经从刚超过五分之一增长到二分之一。
Since 1951 the proportion of married women who work has grown from just over a fifth to a half.
要是我选择一个60度的角，这些数就会是二分之一和二分之根号三。
If I pick an angle of 60 degrees, these are some numbers like half and root 3 over 2.
二分法可以被定义为对弱排序的狄德金分割。
A dichotomy may be defined as a Dedekind cut for a weak ordering.
当今纸废料约占全部废料的二分之一。
Today, paper accounts for about half of the wastes collected.
目前为止，我们讨论了用相对简单的二分法评估站点。
Thus far we've discussed a fairly simple, binary approach to evaluating sites.
世界上在建的62个核电站，有三分之二分布在亚洲。
Of the 62 plants under construction in the world, two-thirds are in Asia.
作为一个西方科学家，尼斯贝特积极地抗拒二分法的趋势。
As a Western scientist, Nisbett actively resists the tendency to create dichotomies.
克里斯塔尔博士说，有效和有用之间的二分法最后可能变成假的。
In the end, says Dr Krystal, the dichotomy between the valid and the useful may turn out to be a false one.
五个麻雀，不是卖二分银子吗。但在神面前，一个也不忘记。
Are not five sparrows sold for two farthings, and not one of them is forgotten before God?
好的，在上次课程的最后，我也给你们看了一个二分查找的例子。
OK. At the end of the lecture last time, I also showed you an example of binary search.
根据统计数字，几乎二分之一的集装箱不能准时抵达目的地。
It's a statistical fact that almost one out of two containers doesn't reach its destination on time.
全世界三分之一癌症与皮肤有关；在美国，这一数字为二分之一。
One in three cancers worldwide is skin-related; in the United States, that figure is one in two.
过去都是由汉旺工厂生产零部件，再运往德阳第二分厂进行组装。
In the past, the parts produced in Hanwang were shipped to Deyang where the second sub-factory of main turbine would assemble them.
占世界儿童总数近二分之一的约七亿儿童呼吸的空气受到烟草烟雾污染。
Around 700 million children, or almost half of the world's total, breathe air polluted by tobacco smoke.
在2100年前，日本、欧洲和俄罗斯的人口，可能会减少二分之一至三分之二。
Japan, Europe and Russia could lose between one-half and two-thirds of their population by 2100.
而现在，事情却迎来了奇妙的转机：近代的物理学家纷纷挑战古典的虚实二分论。
Now, in a fascinating twist, modern physics challenges the ancient dichotomy between substance and void.
这些二分法（效率VS正确性，效率VS编程时间，效率VS高级）并不存在。
These dichotomies (between efficiency versus correctness, efficiency versus programmer time, efficiency versus high-level, et cetera.) are bogus.
日本企业的净资产收益率达到5%左右，是欧洲企业的二分之一以及美国企业的三分之一。
Japanese firms have a return on equity of around 5%, which is half that of European companies and a third that of American ones.
同样地，根据第一分类的衡量，墨西哥优于巴西，但在第二分类上就落后于巴西。
Similarly, Mexico beats Brazil on the first measure, but falls behind on the second.
英国由于发电的需要而对天然气的依赖看起来在十年内将会由低于二分之一上升到四分之三。
Britain's dependence on gas for its electricity seems set to rise from just under half to three-quarters in a decade.
专家称啤酒是膳食中硅元素的主要来源——人体大概能够吸收啤酒中硅元素含量的二分之一。
The experts said beer was a major source of dietary silicon – roughly half of the silicon in beer can be readily absorbed by the body.
目前，其占gdp的份额只有房地产泡沫鼎盛时的大约二分之一，进一步的改善正在进行之中。
At this point, it's only about half as large as a share of G.D.P. as it was at the peak of the housing bubble, and further improvements are in the pipeline.
当然，他们也问刚毕业的大学生一些关于计算机科学理论的问题，如：请写一个二分查找程序。
And, of course, they asked new university graduates about computer science theory; "Write me a binary search."
约有三分之一到二分之一的美国养蜂场陷入绝境；一些养蜂人甚至报告说，自己驯养的蜜蜂损失了近九成。
In the U.S. a third to half of all hives crashed; some beekeepers reported colony losses near 90 percent.
约有三分之一到二分之一的美国养蜂场陷入绝境；一些养蜂人甚至报告说，自己驯养的蜜蜂损失了近九成。
In the U.S. a third to half of all hives crashed; some beekeepers reported colony losses near 90 percent.
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