查询词典 critical mass

In the experiment the time-average coolant mass flux is varied from 300 to 400 kg/m2s and the amplitude of the coolant mass flux oscillation is fixed at 0%, 5% and 10% of . The period of the coolant mass flux oscillation varies from 10s to 30s.

在实验参数范围上，介电液FC-72平均质量通率从300到400 kg/m2s而且流量的振荡振幅为0%、5%、10%，流量的振荡周期为10秒到30秒。

The method adopts powders (10.0 parts of mass) of crop straws and phenols or polyalcohol compound (10 to 100 parts of mass) which is firstly pre-heated by 10 to 30 minutes under a temperature of 30 to 200 DEG C with the effect of acid catalyst (0.5 to 10 parts of mass) for a reaction of 30 to 240 minutes; after the reaction, the compound is washed, neutralized, filtered and dried to obtain a solid appearing as a color from citron yellow, yellow, bight brown to seal brown; wherein, the solid includes 64.0 to 70,0 percent of fibrin and 4.1 to 7.6 percent of lignin.

秸秆"液化"预处理制备生产燃料乙醇原料的方法，是用农作物秸秆的粉末(10.0质量份)和酚类或多元醇类化合物(10～100质量份)，在酸性催化剂(0.5～10质量份)存在下，在30～200℃温度下预热10～30min后，反应30～240min，反应完毕进行洗涤、中和、过滤和干燥而得呈淡黄色-黄色-浅褐色至深褐色固体，其中，纤维素含量64.0～70.0％，木质素含量4.1～7.6％。

The second part is for the calculation of the mass spectrum for two-gluon glueballs by using Bethe-Salpeter equation. Our results are in good agreement with those given by lattice simulation and confirm that the lightest glueball is scalar with mass about 1. 7GeV, the mass of tensor glueball is about 2. 4GeV, the masses of pseudoscalar glueball and 2〓 not less than 2. 0GeV.

二是利用Bethe-Salpeter方程计算了双胶子胶球的质量谱，结果与最近的格点规范计算符合得很好，进一步肯定了标量胶球是最轻的胶球，质量约为1.7GeV；张量胶球的质量约为2.4GeV；而赝标胶球和胶球2〓的质量不小于2.0GeV。

The differential equations of three mass points are derived for different mass relations between them,and their analytic solutions are obtained,by which the movement rule of three mass points are discussed.

分析了一个由三质点和弹簧构成的系统的运动问题，给出了三质点质量满足不同关系时各质点的运动微分方程，求出了运动微分方程的解析解，并由此讨论了各质点的运动规律。

The strength of coal and rock mass can be weakened through deep hole relieving shot, so the ability of energy accumulation is reduced, and a large amount of elastic energy accumulated in coal and rock mass is released, which makes it sure that the elastic energy accumulated in coal and rock mass do not exceed the minimum energy induced rock burst. Simultaneously, electromagnetic emission is used to check out the effect of eliminating or reducing the danger of rock bursts.

通过深孔卸压爆破来弱化煤岩结构的强度，降低其聚能能力，释放所积聚的大量弹性能，使得煤岩体中所积聚的弹性能达不到最小冲击能；同时利用电磁辐射检验强度弱化治理效果，以达到消除或降低冲击危险的目的。

The brazing seam mass is therefore good and bad the mass being related to a weldment is good and bad , mass that can affect to weldment sigmatism function , how to raise therefore, we answer a brazing seam carries out the analysis studying.

因此焊缝的质量好坏关系到焊件的质量好坏、会影响到焊件的使用性能，所以，我们应对如何提高焊缝的质量进行研究分析。

The spectral curve vs invariant mass is becoming wider and the peak is shifted towards the high invariant mass region with the increase of temperature. However, in ultra high temperature or density envi- ronment, the peak is shifted towards lower region and the curve is changed narrower with the increase of temperature. In the invariant mass region M 憕.-?0.4 GeV?.6 Ge1~, the spectral function is enhanced very much. which contributes to the interpretation of dilepton enhancement results in relevant experi

结果显示高温高密强子物质环境对其有非常重要的影响：ρ谱函数在温度或密度不太高时谱函数曲线变宽，并且峰朝不变质量高的方向移动；在极端高温或高密情况下谱函数却变窄，并且峰朝不变质量低的方向移动，在不变质量M～0.4-0.6 GeV区间谱函数有比较明显的增强，这有助于解释双轻子产生的相关实验现象。

The subdeacon used the Apostolus, the deacons the Evangelarium , and the presiding celebrant the Sacramentarium, which contained all the prayers of the Mass. As the practice of private Mass grew, the various liturgical texts were gathered into one book for the priest who performed all the parts of the Mass alone.

该subdeacon用 apostolus ，执事的 evangelarium ，并主持监礼人的 sacramentarium ，其中载有所有祈祷的，因为马萨诸塞州的做法，私人大规模增长，各种礼仪文本收集到一本书，为牧师演出的所有零部件的质量。

Thermal effect on the equivalent spring constants of double-clamped beams with two kinds of mass arrangements including central mass and side mass were studied by theoretical analysis and finite element simulation.

通过理论研究和有限元仿真分析了热效应对两种不同质量块布局的双端固支梁的等效弹簧系数的影响，两种质量块分别布局为质量块与梁对称布置和质量块位于梁平面一侧布置。

Using of matrix assisted laser desorption/ionization time of flight mass spectrometry coupled with carboxypeptidase Y digestion for the analysis of C terminal peptide ladder by direct determination of the mixture of truncated peptide, the sequence of C terminus can be read out simplely from the mass differences between adjacent peptide peaks on the mass spectrum.

用羧肽酶Y水解蛋白质和多肽，结合飞行时间质谱测定酶解后缩短肽的质量，根据相邻两肽峰的质量差别读出蛋白质和多肽的C端序列，在pmol水平下测定了人促肾上腺皮质激素片段以及人血管紧张肽片段，其中人促肾上腺皮质激素片段测到了C端 15个氨基酸残基的顺序

As of Tuesday, Google's results were still censored in China.

截至周二，谷歌的搜索结果仍受中国审查。

In order to make the positive action increase and negative one decrease, the sub-forces of the social factors must be adjusted to form a centripetal force.

在这一过程中，人的主体性发挥是社会有机体健康发展的灵魂。