critical mass

critical mass的基本解释

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[电] 临界质量

与critical mass相关的网络例句 [注：此内容来源于网络，仅供参考]

Have introduced its systematic structure and operation principle in the system of loading of the inertia, and the vibration question that should be paid attention to while designing a group of rotator inertial mass, describe a critical rotational speed of group of rotator inertial mass in detail, influence the factor of a critical rotational speed of group of rotator inertial mass, and rotate a critical rotational speed computing technology and rotation of group and a balance question of group of inertial mass of inertial mass , and confirmed a design of group of rotator inertia quality finally.

在惯量加载系统中介绍了其系统结构和工作原理，以及在设计旋转惯性质量盘组时应注意的振动问题，详细地论述了旋转惯性质量盘组的临界转速，影响旋转惯性质量盘组的临界转速的因素，以及旋转惯性质量盘组的临界转速的计算方法和旋转惯性质量盘组的平衡问题，并最后确定了旋转惯量质量盘组的设计。

To give the definition of the mass concrete and to concrete\'s cracks together with practical meanings of control ,and give a brief review on the research in the field at home and abroad, at last, methods to control temperature crack of the mass concrete from several aspects such as design measures,concrets material, construction schedules.etc are summed up; To explain the physical mechanics of the concrete and computing methods-Difference Method and Finite Element Method, and illustrate the application of their specific methods repectively;Several temperature factors that can influence the temperature stress of mass concrete baseplate are analyzed. The influence degree of temperature factor can be got through the ANSYS simulation computation the control of temperature can control the temperature stress, consequently control the temperature crack of mass concert baseplate; through the influence of the crack resistance ability of mass concrete baseplate which takes the reinforcement as a part is analyzed. By ANSYS simulation, the best suited volume ratio of reinforcement is found out, at same time the layout of reinforcement with the same volume ratio can also affect the resistance ability of mass concrete baseplate. Sum up of above analysis, anti-crack function of steel bar in early mass concrete baseplate is obvious, so it\'s necessary to consider beneficial effect of construction steel bar in research of temperature control on mass concrete baseplate.

本文先容了大体积混凝土及混凝土裂缝的基本概念，对国内外在这个领域里的研究现状作了扼要叙述，并从结构设计、混凝土材质、施工措施等方面总结了大体积混凝土温度裂缝控制的方法及防止措施；阐述了混凝土的基本物理力学性能，总结了大体积混凝土温度计算的方法——差分法和有限元法，并分别举例说明其具体应用的方法；分析了影响大体积混凝土底板温度应力的几种温度因素，利用ANSYS模拟计算，得出了每种因素的影响程度，通过分析提出了在这几种温度影响因素下如何通过控制温度以达到控制温度应力从而来控制裂缝的具体建议；针对大体积混凝土基础底板中配筋的不同对混凝土底板抗裂能力的影响不同，利用ANSYS进行模拟分析，得出底板中最合适的体积配筋率，同时分析了在相同体积配筋率下钢筋的具体布置对大体积混凝土基础底板抗裂能力的影响，分析表明，配置钢筋对混凝土结构的开裂阻止作用明显，在研究大体积混凝土温度裂缝题目时，要考虑钢筋在其中的有利作用。

So, the average density of spatial energy of spatial radius is the length of Planck of relative time-space cosmic energy follow the rise and fall of quantum spatial measurement, at original cosmic time-space set out, from the structure-energy of mass 16.38×10-71 N · m to the space-energy of 8.19×10-71 N · m and the mass-energy of 8.19×10-71 N · m, come to do not exceed the structure-energy of mass 32.76×10-71 N · m to the space-energy of 8.19×10-71 N · m and the mass-energy of 24.57×10-71 N · m, not smaller the structure-energy of mass 21.84×10-71 N · m to the space-energy of 8.19×10-71 N · m and the mass-energy of 13.65×10-71 N · m, come to do not symmetrically gradually belong to stabilization thus at reductively fluctuate, not can reversely strides across reach the stable state of structure-energy mass 24.57×10-71 N · m to the space-energy of 8.19×10-71 N · m and the mass-energy of 16.38×10-71 N · m maintain unchanging.

所以，宇宙能量的相对时空空间的半径为普朗克长度的空间的能量平均密度随宇称量子的涨与落，在原初的宇宙时空启动，从16.38×10-71N · m 质量结构能对于8.19×10-71N · m 空间能与8.19×10-71N · m 质能，成不大于32.76×10-71N · m 质量结构能对于8.19×10-71N · m 空间能与24.57×10-71N · m 质能，不小于21.84×10-71N · m 质量结构能对于8.19×10-71N · m 空间能与13.65×10-71N · m 质能，成不对称地递归于稳定而在缩小地波动，不可逆地跨越到24.57×10-71N · m 质量结构能对于8.19×10-71N · m 空间能与16.38×10-71N · m 质能的稳定状态保持不变。

与critical mass相关的网络解释 [注：此内容来源于网络，仅供参考]

critical mass：临界质量

以当时的条件,纳粹要制造原子弹几乎是不可能,也使得欧洲人民免去了遭纳粹原子弹的厄运,最后高举正义大旗的美国人用十几千克的铀造出原子弹来,于是亚洲人民遭了殃...(笑)很难想象海森堡会犯如此三流甚至不入流的错误,"临界质量"(critical mass)的运算可是当年我国

critical mass：临界物质

这组雕塑作品由60...英国雕塑家安东尼.葛姆雷(Antony Gormley)最为著名的一组雕塑作品>(Critical Mass)目前正在De La Warr Pavilion展出,展览将持续到2010年8月31日.

critical mass：关键规模

由于这一行业存在较强学习效应和先行者优势(first mover's advantage),对企业和行业关键规模(critical mass)比较敏感,再加上我国劳务和土地等不可贸易投入成本随着整体经济快速增长以及人民币汇率升值趋势展开会较快上升,

critical mass：临界规模

不过,外商必须在投资额或创造就业机会上达到"临界规模"(Critical Mass)才可获得奖励. 有关临界规模的判断与规范情况不一且相当复杂. 如需详细资料及服务,请联系比利时驻华办事处或本手册内所列的相关政府机构.

critical mass flux：临界质量流量

critical heat flux modified spacer factor 临界热流密度格架修正因子 | critical mass flux 临界质量流量 | critical nuclide 关键核素