燃煤增压流化床的燃料制备与输送系统往往需采用气力输送方法送入加压罐后再送入炉内，系统复杂。
Preparation of fuel and transport system for coal fired pressurized fluidized bed always needs pneumatic method for feeding the fuel into the pressurized tank and then to the furnance.
用再沉淀法制备了1，4-二氰基萘（DCN）一维亚微米结构。通过改变制备条件分别得到了DCN的线状及管状一维结构。
Solid and tubular one-dimensional (1D) submicrometer scaled structures were prepared from naphthalene-1,4-dicarbonitrile (DCN) with a reprecipitation method.
目的建立合适的实验性慢性糖尿病大鼠局灶性脑缺血再灌注模型，并比较分析影响模型制备成功的因素。
Objective To establish an appropriate model of focal ischemiareperfusion in experimental chronic diabetic rats and comparatively analyze the factors influencing successful preparation of model.
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