The crystal structures of bastnaesite - ( Ce ) and fluocerite - ( Ce ) was refined by high power four - circle X - ray diffractometer.用强功率四圆单晶衍射仪精确地修正了 氟碳铈 矿和氟铈矿的晶体结构....
卧式床身是基础构件,用来支承床头箱 、 尾座和拖板.The horizontal bed is the foundation member which supports the headstock , tailstock, and carriage.四根导轨设计避免了尾座来回移动时的碰撞.The four guide way design allows collision - free traverse movement of the ...
结论: 白矾及枯矾在体外有明显的抑菌作用.Conclusion: Alum and dried alum have significant bacteriostatic effect in vitro.目的: 探讨白矾及枯矾体外抑菌作用.Objective : To explore the bacteriostatic effect of alum and dried alum in vitro.目的:分析市售白矾不合格原因,寻找解决办...
目的综述土曲霉洛伐他汀发酵研究的进展.Objective To review the advances on lovastatin fermentation by Aspergillus terrus.黄曲霉毒素产生于潮湿的谷物和坚果类产品中.Aflatoxins are produced in moist grains and nut products.引起贮藏期红栀子果实发生褐变腐烂的病原菌为黑曲霉和黄曲霉.The pathogen...