In order to investigate the influence of three key molar ratios (n(SiO_2)/n(Al_2O_3), n(K_2O)/n(Al_2O_3) and n(H2O)/n(K_2O)), a total of nine potassium poly-sia
通过体育场智能照明控制系统的设计,阐述了智能照明控制系统组成及功能,以及在实际应用中的方式和管理方式.
A股近期迎来等待已久的多项举措,优先股、IPO、创业板改革措施一揽子推出,这将对股市未来走势产生重大影响。优先股试点开启,创业板门槛降低,新股发行改革深入推进,这些举措
Geopolymer-lightweight aggregate refractory concrete (GLARC) was prepared with geopolymer and lightweight aggregate. The mechanical property and heat-resistance
本研究按照农药登记毒理学试验方法(GB15670-1995),对毒菌锡原药进行了大鼠急性经口毒性试验,蓄积性毒性试验,亚慢性(90天)混饲经口毒性试验,小鼠骨髓细胞微核率,小鼠睾丸初级