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For example, H, atomic weight of 100,794 hydrogen, carbon FC atomic weight of 1201, the atomic weight of oxygen O for 1594, Copper Cu for F63546 and so on. F history, had also used the other two kinds of "benchmarks", and there have been two kinds of scales used in parallel .1803 years, J Dalton published the first atomic table, the hydrogen-quality of the original F son as a "benchmark "requiring H, atomic weight is 1. In 1826, JJ Berzelius Tony F are presented to the quality of 116 oxygen atoms O as a" baseline "(scheduled for O, E atomic weight 16), which is has been in use to 1961 "Oxygen unit." 1929, found that the oxygen in nature, in addition to the greatest abundance of 16O, there are a small amount of slightly heavier 17O and 18O two kinds of isotopes, and the different sources of oxygen, its composition is slightly different.

例如氢H的原子量为100794，碳FC的原子量为1201，氧O的原子量为1594，铜Cu为F63546等。F历史上，还曾用过另外两种"基准"，并且有过两种标度并行使用。1803年，J道尔顿发表的第一张原子量表，把氢原F子的质量作为"基准"，规定H的原子量为1.1826年，JJ贝F采利乌斯提出，以氧原子O质量的116作为"基准"（定O的E原子量为16），这就是一直沿用到1961年的"氧单位"。1929年发现，自然界中的氧，除丰度最大的16O以外，还有少量稍重的17O和18O两种同位素，并且不同来源的氧，其组成也稍有不同。

To do so, click the icon beside the question or the question itself. Your questions will be listed on the 'Organize My Questions' page where you can save, e-mail or delete them.

提问时，可以点击问题旁边的按钮或问题本身，你的问题就会被列在"我的问题组"中，你可以保留、e-mail或删除这些问题。

You may know that getting enough of the antioxidant vitamins C and E and beta-carotene is one of the best ways to slow the clock.

你可能知道获取足够的维他命C和E以及胡萝卜素是使时间变慢地最佳方式之一。

Examples of antioxidants include beta-carotene, lycopene, vitamins C, E and A, and other substances.

例子包括抗氧化剂β-胡萝卜素、番茄红素、维生素C、E和一个和其他物质。

Finally,i use Pro / E software to make the bevel gear ,the three-dimensional modeling

最后利用Pro/E软件对锥齿轮进行了三维建模。

Vitamin E may help to nourish the bilabial, causes the bilabial to look like is smooth, is healthy.

维他命E可以帮助滋养双唇，使双唇看起来光滑、健康。

Lip gloss explanation: Contains the rich lock water moisturizer factor, and richly including vitamin A, E, C, brilliance according to person's color, but may also achieve the super nutrition moisturizer function, the shea butter and the vitamin A ingredient gives the bilabial moisturizer the function.

唇彩说明：内含丰富的锁水保湿因子，并富含维他命A、E、C，光彩照人的色彩，还可以达到超级的营养保湿作用，牛油树脂和维他命A的成份给予双唇保湿的作用。

"Fat-soluble vitamins (vitamin A, vitamin D, vitamin E, and vitamin K) require bile salt s for absorption and are stored in the body."

脂溶性维生素(维生素A、维生素D、维生素E、维生素K)需要胆盐才能被吸收，并储存在体内。

The set E may be thought of as a binary relation on set V.

集合 E可看成集合 V上的一个二元关系。

Results The incidence of birth defect E had no increase compared with former three years.

结果 根据动态基线的报警线控制图法，未发现畸形E的发生有增加。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。