本文讨论了一类含奇异系数双曲偏微分方程柯西问题解的可微性与低阶项之间的关系。
The relationship between the differentiability of solution of Cauchy problem of weak—hyperbolic differential equationand its lower term is studied in this paper.
该改进的喷嘴结合了柯恩达效应诱导元件以便增强要在微粉射流磨机产生的涡流内磨碎的颗粒的夹带能力。
The improved jet nozzle incorporates a coanda effect inducing element to enhance entrainment of particles to be ground within the vortex created by the micronizing jet mill.
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