c3h8

Use this model to calculate the permeation rate and separation factor of C3H8 / CH4 .

并用该数学模型对另一新的混合气体体系C3H8/CH4进行模拟计算，预测丙烷在这一体系中的渗透速率和分离因子的变化趋势。

Strain rate effects on the integral burning velocity of laminar premixed CH4 / air and C3H8 / air flames

火焰拉伸对甲烷/空气和丙烷/空气层流燃烧速度的影响

It can reflect the flame propagation speed and evaluate the explosion intension . Strain rate effects on the integral burning velocity of laminar premixed CH4 / air and C3H8 / air flames

计算出的分形维数是衡量湍流火焰传播速度以及爆炸强度的有效参数。火焰拉伸对甲烷/空气和丙烷/空气层流燃烧速度的影响

The precision steel castings were produced with nitrogen ( N2 ) or propane gas ( C3H8 ) filling the shell mold before and after pouring liquid steel in case of sand-free .

在浇注前和浇注后分别向精密铸造型壳内通入氮气或丙烷气，采用不填砂浇注方法获得铸件。

The New wear-resisting artificial joint material of ultra high molecular weight polyethylene is the UHMWPE samples implanted by 80 keV C3H8 + , N2 + ions with various doses . The elastic recoil detection has been used in the samples .

新型耐磨高分子人工关节材料是用80KeV不同剂量C3H8~和N2~+对超高分子聚乙烯样品表面进行离子注入后的材料，通过对该材料进行弹性反冲探测，显示其磨损性能增强。

M2 / ( s ? Pa ) and the ideal selectivity of H2 / N2 and H2 / C3H8 was 4.21 and 7.56 , which are higher than the respective Knudsen diffusion ratios of 3.74 and 4.69 .

m2/（s？Pa），H2/N2的理想分离系数达到4.21，H2/C3H8的理想分离系数达到7.56，超过对应的努森扩散值3.74和4.69。