The fine structure constant, and other fundamental constants, are absolutely central to our current theory of physics.
微细构造常数和其他基本常数都无疑是我们现在研究的核心。
Constant flexing of the structure concentrates stress, which leads to microscopic cracks.
这些构造部位的频繁伸缩使应力集中,导致微裂纹的产生。
The only feasible explanation was that a constant of physics called the fine structure constant, or alpha, had a different value near the time the light started its journey.
唯一可能且合理的解释是:一个被称之为“精细结构常数”或α的物理常数,在临近启程的那段时间产生了一个不同的值。
You then define a constant CONVERSION_STRUCT_SIZE for the size of the whole structure.
随后为整个结构的大小定义常量CONVERSION_STRUCT_SIZE。
Slightly belying its name, the fine-structure constant is actually a compound of several other physical constants, whose values can found in any physics textbook.
精细结构常数实际上是其他几个能在任何物理学教科书中找到数值的物理常数合成,同它的名称稍微有些名不副实。
The number he was referring to, which goes by the symbol alpha and the rather more long-winded name of the fine-structure constant, is magic indeed.
他所指的数字依据字母阿尔法和一个更加冗长的精细结构常数,该数的确神奇。
Over billions of light years and looking back billions of years in time, we now know that the fine-structure constant hasn't changed any more than about .001 percent.
在那几十亿光年以外的地方,回头看数十亿年时间,我们现在知道,这个精细结构常数并没有任何超过1/100000。
The principle, structure, measurement limit and analyze of uncertainty of the constant pressure gas flowmeter, which was the key component of gas flow standard apparatus, were considered emphatically.
着重考虑了作为气体微流量标准装置核心的恒压式气体微流量计的原理、结构、下限因素和不确定度等基本问题。
A zipper is a way of representing a data structure with a local context, such that navigation (iteration) and modification from the current context are, for the most part, constant-time.
zippers是使用本地上下文表示数据结构的一种方法,这使当前上下文中的导航(迭代)和修改在很大程度上具有常量时间的特点。
Fundamental constants such as the strength of the electromagnetic force - the so-called fine-structure constant, or alpha - get their name from the fact that they are supposedly the same everywhere.
宇宙基本常数,比如电磁力强度之类的精细结构常数,符号位“alpha ”,它们因为被假定为不变量而得名。
This article introduces the frequency speed constant pressure water supply system controlled by PLC, presenting its hardware structure, the design of PLC program and its application.
介绍了用PLC控制的变频调速恒压供水系统的基本原理,给出了系统的电气线路和PLC程序设计,并在实际中得到了应用。
Relationship between constant of electric resistance and structure parameter in rare earth electrolysis cell was studied through simulation experiment.
通过模拟实验研究了稀土电解槽的电阻常数与其结构参数之间的关系。
Then, the structure and dynamic models of improved constant rotor speed control system using electric field method are proposed.
在此基础上,提出了改进后的球形转子电场恒速控制系统的结构和动态模型。
The calculation results for the lattice constant, bulk modulus, cohesive and electronic band structure agree with that results of ah initio pseudpotential method.
对于平衡晶格常数、体模量、结合能和能带结构的计算结果与从头算赝势方法较接近;
Through cold model experiments, Under the condition of the constant basic structure parameters, the influence of inlet shape on without inner cyclone was investigated in this paper.
通过冷态模型试验,在旋风筒基本结构参数不变的条件下,本文着重研究了无内筒旋风筒进口形状对其性能的影响。
The relation of linear ablative rate (ar), ablative heat insulating property index (API) and structure constant (K) to ablative heat insulating property were studied in this paper.
本文着重研究有机聚合物线性烧蚀速率(AR)、烧蚀隔热性能指数(API)和有机聚合物结构常数(K)与烧蚀隔热性的关系。
Uneven constant magnetic field could alleviate the deformation of neuronal nucleus and change of nuclear membrane structure induced by hypoxia.
非均匀恒磁场可缓解缺氧导致神经元的核变形以及核膜结构不光滑等现象。
The structure and design principle of a constant pressure water-supplying system are introduced.
介绍了一种恒压供水系统的构成及设计原理。
The cost structure of energy consumption of hot oil pipeline has greatly taken place by the constant increment of electrovalency and great drawdown of heating oil price.
由于电价不断上涨导致燃油价格大幅度下降,使热输管道的能耗成本结构发生了较大变化。
The structure and principle of a constant pressure water supplying system were presented in this paper.
介绍了一种恒压供水控制系统的构成及设计原理。
Simultaneously with increasing of Y3 + substitution, crystal cell constant was minished. The dielectric properties were changed regularly with the change of structure.
同时,随着Y3 +取代的增加,晶胞常数减小,介电性能随结构的变化而呈现有规律的变化。
The thesis introduces a principle and a characteristic of structure of a new type of transducer called magnetostrictive pick-up, which is applied to constant tension control system of warp of a loom.
介绍了一种新型-磁致伸缩传感器的工作原理和结构特点,以及该传感器在织机经纱恒张力控制系统中的应用。
Through quantitative force analysis and calculation of tensile control structure, new constant tensile control structure and locking pneumatic finial of spool are designed.
通过对张力控制结构作定量的受力分析与计算,设计新型恒张力控制结构和工字轮锁紧气动顶尖。
Based on this model, the flow structure in constant velocity section of downer was calculated, and discussed.
依据此模型对下行床恒速段流动结构进行了计算并进行了讨论。
The characteristic stress state of rock structure is keeping constant before its losing steady, and suddenly destroyed with releasing energy, namely creep is losing steady.
岩石工程结构失稳前特征即应力状态保持不变,且是突然破坏释放能量,即蠕变失稳。
Based on subband decomposition technique, a new structure of fractionally spaced constant modulus algorithm (FSE-CMA) equalizer was proposed for wideband wireless transmission.
提出了一种基于子带分解技术的分数间隔恒模算法(FSE - CMA)的宽带均衡器结构。
Introduces a method to measure Planck's constant under computer, illustrates the hardware structure of measurement system.
介绍了一种利用计算机测量普朗克常数的方法,对于测量系统的硬件结构给予较详细的说明。
Also it is found that the standard deviation of vertical velocity is relative to the refractive -index structure constant well.
同时分析了垂直风速标准差,发现其有明显的日变化特征,并且与大气折射率结构常数有很好的相关性。
The effect of particles having different dielectric constant on the solid structure of electrorheological fluids is discussed.
讨论了两种不同介电常数的固体颗粒不同配比时,对电流变液固态结构的影响。
Effect of exfoliation on structure and tensile strength of LC4CS aluminum alloy at constant temperature.
恒温剥蚀对LC4CS铝合金结构和力学性能的影响。
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