该文研究了干切牛肉冷冻干燥中使升华干燥速率最大化所需要的操作条件.The operation conditions for the sublimation rate during freeze drying of cooked beef slice were studied.搁板可加热, 这样可使升华速度加快,减少干燥周期.The baggage shelf may heat up, speeding up the sublimatio...
今天的时髦话往往变成明天的陈词滥调.The fashionable remarks of today often become the commonplace expressions of tomorrow.今天流行的时髦话明天常常成为陈腐之言.The fashionable remarks of today often become the commonplace expression of tomorrow....