It begins with Maarten Schmidt who hypothesized that star formation rate (SFR) was related to the surface density of atomic hydrogen gas in the cloud.
最早是MaartenSchmidt猜测恒星形成率(SFR)与云层中氢原子气体密度有关。
By considering the effects of gas velocity and particle circulating rate on the surface abrasion rate, an empirical equation is proposed.
实验结果揭示了气体流速和固体颗粒循环速率两个操作条件对磨损速率的影响规律。
The vaporous cryogen creates a reinforcing vapor that slows the expansion rate of the expanding gas, localizing the expanding gas over the metal surface.
蒸气制冷剂产生减缓膨胀气体的膨胀速率的补强蒸气，从而将膨胀气体留存在金属表面上。
The gasification reaction rate would reduce because ash would melt, which will plug the coal surface pores and increase gas diffusion resistance.
高温下煤灰发生熔融，将会堵塞煤焦表面孔隙，增大气体扩散阻力，降低气化反应速率。
The effects of surface roughness at different areas of the seal faces on the performances such as gas film stiffness and leakage rate of a S-DGS were studied.
结果表明：密封端面各区域表面粗糙度对密封性能的影响规律各不相同，并且转速对表面粗糙度与密封性能的关系产生影响；
Cool air circulation is formed on the outer surface of the storage tank insulating layer, thereby reducing the evaporation rate of liquefied natural gas.
本发明在储罐保温层的外表面形成冷空气的循环，能够减小液化天然气的蒸发率。
The improvement in hydrophilicity of the inner surface were enhanced with increasing treatment time and bias voltage, while were decreased with increasing the gas flow rate.
亲水性的改善程度随处理时间和电极偏压的增加而变好，但随气体流量的增加而变差。
The defects of sand-slag and gas-hole are absent in the water-cooling-sprayer whose surface is clean and qualified rate is more than 90%.
结果表明：铸件表面光洁，无砂眼、气孔等缺陷，铸件合格率高于90%；
The defects of sand-slag and gas-hole are absent in the water-cooling-sprayer whose surface is clean and qualified rate is more than 90%.
结果表明：铸件表面光洁，无砂眼、气孔等缺陷，铸件合格率高于90%；
应用推荐