查询词典 atomic mass unit

The salt component calcium chloride entrained in the precipitation of trimeric cyanamide phosphate can be fully removed in the mass ratio of solid to liquid 15, at temperature 40 ℃, stirring time 60 min and repeatedly washing three times with water.

该工艺路线可行，反应条件温和，中间媒质三聚氰胺可循环使用，以氯化钙副产品替代了磷石膏的产出，减缓了硫资源的消耗，避免了硫酸根对三聚氰胺沉淀的影响，适合于贫磷矿资源的开发。

The cyclic symmetric conditions of node points are presented to modify the stiffness and mass matrices of the substructure.With the use of the structural cyclic symmetry and the complex constraint conditions,the eigenvalue ...

这证明复约束法既极大地减少了计算所需内存和机时，又可建立包含轮齿和轮体在内的计算模型，保证了齿轮结构特征值问题计算的完整性和准确性。

The fragmentation pathways of these compounds are investigated by ESI-MSn and Fourier transform ion cyclotron resonance multiple-stage tandem mass spectrometry.

通过多极串联质谱和多极串联傅里叶变换回旋共振质谱法研究了它们的碎裂规律。

Its 60-degree cylinder block and cylinder heads are cast aluminum to help reduce mass.

它的60度的缸体和缸盖的铸造铝合金，以帮助降低质量。

This should be expected in view of the much greater mass contained in the cylinder.

鉴于圆柱体包含的质量大得多，这是在意料之中的。

We applied the theory of interacting continua in dynamics of composi-te materials to study the problem of cylindrical wave propagation in laye-red rock mass.

近些年来，随着复合材料生产的发展，复合材料力学性质的理论和实验研究也相应地发展起来了。

The design method of fractional Controller for angle stability loop and mass center control loop of GREP was studied.The fractional PI~λD~μController and integral PID Controller were designed respectively for some type GREP.The simulation results show that the fractional PI~λD~μController designed by this method has its own features compared with PID Controller.

研究了滑翔增程炮弹角稳定回路和高度控制回路的分数阶控制器设计方法，并对某滑翔增程炮弹算例分别进行了分数阶控制器和整数阶PID控制器设计，仿真结果表明该设计方法设计的分数阶控制器较PID控制器有其自身的特点。

The governing equation of in-plane vibration of cable-restraint system is derived by means of D'Alembert principle, and then those partial differential equations are transformed into a set of ordinary differential equations by Garlerkin method. The method of Runge-Kutta integration is applied to solve the equation. The simulation analysis is made to prove that this vibration control has obvious damping effects and then the influence of cable tension, support mass, natural frequency and spring stiffness on the damping are discussed. Eventually, the approximate analytic solution of the optimum damping parameter is obtained to provide a simple and effective reference and design method for the engineers.

通过D'Alembert原理建立拉索－弹性约束系统振动方程，通过Galerkin方法将偏微分方程转化为常微分方程，应用龙格－库塔积分法求解方程；经过仿真分析，验证了该振动控制具有明显的减振效果，并且讨论了初始拉力、支座质量、振动频率及弹簧刚度对减振效果的影响；最后给出了计算最优阻尼参数的近似解析式，为工程师提供了简便有效的参考依据及设计方法。

The two-degree-freedom vibration system made of the main mass and dynamic vibration absorber in deep sea was studied. The mathematics model was built based on the principle of D'Alembert theory, and was calculated with non-dimensional equations.

以深海中附有动力吸振器的两自由度振动系统为研究对象，利用达朗伯原理建立了数学模型，并进行无量纲化运算。

Hydrodynamic forces in potential flow, D'Alembert's paradox, added-mass.

势流中作用在运动物体上的流体动力，达朗伯特详谬，附加质量。

Although translator has turned from being a crystal ball by which the original culture can unrestrainedly penetrate to another crystal ball by which the target culture can freely traverse, the translator's personal embodiment, in the process of cognitive act, are still absent in translation studies. Translators are still subjects without body or simply disembodied subjects.

译者虽然由原语文化可以自由穿透的玻璃球变成了译语文化可以自由穿越的玻璃球，但译者认知过程中的个体体验在翻译研究中依然缺席，译者依然仅仅是一个没有躯体体验的主体。

Chillingly, he claimed our technology is 'not nearly as sophisticated' as theirs and "had they been hostile", he warned 'we would be been gone by now'.

令人毛骨悚然的，他声称我们的技术是'并不那么复杂，像他们一样，和"如果他们敌意"，他警告说，'我们将现在已经过去了。