Observing the tissue changes of grouper after freezing by using electronic microscope, a study has been conducted to evaluate the freshening effect of air blast freezing technology in operation.
利用电子显微镜观察石斑鱼冻结后的组织变化情况，研究现行吹风冻结工艺的保鲜效果。
Effects of fly ash and pulverized blast furnace slag on resistance of permeability and resistance of freezing of high strength lightweight aggregate concrete (HSLWAC) were investigated.
研究了粉煤灰和磨细矿渣对高强轻骨料混凝土抗渗及抗冻性能的影响。
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