pulse mass-spectrometer

Permeability test of granite mass by using pressure pulse test method

利用压力脉冲试验测定某地花岗岩体的渗透系数

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The derived indexes were body mass/ body height index, index of chest circumference ( chest circumference-1/ 2 body height) and blood pressure index ( pulse pressure difference/ systolic pressure × 100).

派生指标：体质量/身高指数、胸围指数（胸围-1/2身高）、血压指数（脉压差/收缩压×100）。

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According to the Newton's second law of motion, the law of conservation of mass, and Bingham plastic flow equation of slurry, as well as under top cement pulsation, the mathematical models of one dimensional pressure pulse propagation downwards in the cement column was established.

文中根据牛顿定律、质量守恒定律及水泥浆的宾汉塑性流变性，在顶部水泥脉冲振动作用下，建立了水泥浆中，一维压力传播的波动方程的数学模型。

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Using thrust wall pressure integration method and spring-mass-damper system method synchronously, the average thrust characteristics of a model pulse detonation engine operated in variety frequencies were investigated experimentally.

同时采用推力壁压力曲线积分法和弹簧-质量-阻尼系统法对一PDE模型机在不同频率多循环工况下的平均推力特性进行实验研究。

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Fluorine Nucleosynthesis in Low-mass AGB Stars during the Thermal Pulse Phase

小质量AGB星热脉冲阶段氟的核合成

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