质量数

In the event of neutron capture, the mass number of the nucleus will be raised, and it will thus become unstable and radioactive.

一旦俘获了中子，原子核的质量数便会增加，因而也就会变得不稳定并且具有放射性。

In Chapter 5,the pyrolysis of substituted six-membered ring model compound 4-methyl pyridine has been investigated.Instead of detail theoretical analysis of the reaction mechanism,the general results have been proposed from the products distribution and the combination of the pyrolysis investigation of its analogous pyridine.The major products are H_2,C_2H_2,C_4H_2,C_3H_3N and HCN,here HCN is not a primary initial product at low extent of decomposition.The mole fraction profiles of products have been obtained from the near threshold ionization.The pyrolysis of 4-methyl pyridine is initiated from the methyl abstraction and hydrogen abstraction procedures which are associated with the understanding of the soot formation and the NOX precursor correspondingly.

主要产物为H_2，C_2H_2，C_4H_2，C_3H_3N和HCN，其中HCN为非低温时的热解产物；通过近阈值电离并导出物种随温度变化的摩尔分数曲线，更详细地定量地描述了产物随温度的变化。4-甲基吡啶热解主要从母体脱甲基和脱氢两个初始反应出发，一种趋势是形成大质量数的苯并或杂环的多环化合物，有助于了解炭黑形成过程中的复杂化学过程；另一趋势是开环生成小的碳氢和腈类物质，实验得出的含氮物质的种类及随温度变化有助于了解NO_x的前驱物质的形成及其变化规律。

Bosons include mesons, nuclei of even mass number, and the particles required to embody the fields of quantum field theory.

玻色子包括介子、偶质量数的原子核以及体现量子场论中的场所需要的粒子。

Bosons include meson s, nuclei of even mass number, and the particles required to embody the fields of quantum field theory.

玻色子包括介子、偶质量数的原子核以及体现量子场论中的场所需要的粒子。

Bosons include mesons, nuclei of even mass number, and the particle s required to embody the fields of quantum field theory.

玻色子包括介子、偶质量数的原子核以及体现量子场论中的场所需要的粒子。

The experimental results showed when acid concentration in serum sample was increased and hydrolysis time was prolonged that the bar graphs form of a spectrum were moved to small masses, on the contrary, to large masses. The most six peptides were got. Parts of possible component of amino acids into correspondence with mass numbers were kisted.

实验还表明增加血样的酸浓度及水解时间，血样的FDMS棒图则向小分子量方向移动，反之则向大质量数移动；最多测得六肽；对应所得到的质荷比值，列出了部分可能的氨基酸组成。

From the 4687 effective ESTs of Lycoris longituba bud, a total of 2310 different contigs were obtained, 1343 of the 2310 contigs were composed of only one EST, and such contig was also called singlet; 735 contigs were obtained from the 1312 effective ESTs of wild leaf of Lycoris aurea, among which 535 contigs were singlets; 879 contigs were obtained from the 1810 effective ESTs of mutant leaf of Lycoris aurea, among which 574 contigs were singlets.

利用Phred软件对长筒石蒜花苞EST 4992条、忽地笑野生型叶片EST 1606条及忽地笑突变型叶片EST 2132条进行编辑后，分别获得4687条、1312条、1810条有效EST序列，其序列的平均长度分别为545bp、403bp、437bp，序列平均质量数分别为39.28、39.54、40.13；另外通过GC含量分析获得长筒石蒜花苞、忽地笑野生型及突变型叶片EST的GC含量分别39.46、48.33、47.51。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。