查询词典 impreg

Alumina-supported Pd catalysts were prepared by three different methods: impreg nation, sol-gel-impregnation and sol-gel.

摘 要：采用三种不同方法制备了氧化铝负载的Pd催化剂。

Theopportunity of cross linking reaction between the wood of impreg PF resin treated by hightemperature(150℃-160℃)heating and free radical of wood increased.

木材和PF预聚物之间相互作用的机理可能是；①木材自由基活化了PF预聚物分子，产生-C＝O键；②PF预聚物浸注于木材中，经高温(150℃～160℃)加热处理同木材自由基发生各种复杂反应的机会多，形成化学交联。

The Pt-Sn/CCA and Pt-Sn/γ-Al2O3 catalysts were prepared by impreg nation method. The acti vity at 300 ℃ or 350 ℃ and the stability at 450 ℃ of the catalysts were evalu ated, and the structure of Pt-Sn/CCA catalyst was generally studied.

采用共浸法制备了Pt-Sn/CCA催化剂，利用在线色谱微反实验装置评价了此类催化剂对甲基环己烷脱氢反应的活性和抗炭性能，初步研究了Pt-Sn/CCA催化剂的物理化学结构。

For the Chinese fir WMNC with a low content of MMT, the properties including humidity and water adsorption, dimensional stability, water-leaching resistance, longitudinal compression strength, abrasion resistance and oxygen index are all improved compared with PF impreg.

由于单纯酚醛树脂浸渍处理对杉木性能的改善作用已较显著，而且蒙脱土在WMNC复合材中的质量分数太小（＜3%），WMNC的纳米复合效应并不显著。

Textile fab impreg, ctd, cov nes; paintd canvas e.g.threatrical scenery

用其他材料浸渍、涂布或包覆的纺织物；已绘制画布

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。