聚丙烯

Using interfacial tensiometer, surface viscoelasticity meter and Zeta potentiometer to analyze the interface features of partially hydrolyzed polyacrylamide solution and simulated oil of crude oil in Daqing Oilfield, as well as the influences of solid particles on the interface.

采用界面张力仪、表面粘弹性仪和Zeta电位仪研究了部分水解聚丙烯酰胺溶液与大庆原油模拟油之间界面性质以及固体颗粒对这些界面性质的影响。

The dynamic interfacial tension between heavy alkylbenzene sulfonate and crude of Daqing oilfield was measured using the spinning drop tensiometer.

测定了重烷基苯磺酸盐溶液与大庆原油间的动态界面张力，考察了NaOH、Na2 CO3 、部分水解聚丙烯酰胺和重烷基苯磺酸盐对动态界面张力的影响。

Computer simulation is employed to study the structure of a thin PP film in vacuum.

用计算机模拟的方法详细研究了聚丙烯薄膜表面分子级别的结构。

The pI of these components gradually decreased f rom pH 4.0 according to electrophoresis mobility from higher to lower on PAGE. The molecular weights were in the range of 22～34 ku. 6.5 and 7 w ere glycoproteins proved by staining with the shiff reagent and thymol/sulfuric acid. The fibrinolytic activity of 7 was highest as determined usi ng chromzym UK and chromzym PL as specific substrates.

这些组分的等电点按照它们在聚丙烯酰胺凝胶电泳图谱上的顺序从4.0开始依次降低；SDS-PAGE证明，除3、4外，其余组分均只含一种多肽链，分子质量在22～34ku之间；用shiff试剂和酚-硫酸染色，显示1、2、6.5和7是糖蛋白，其中7的糖含量最高；以BAEE、Chromozym UK和Chromozym PL为底物测定，7的纤溶酶活性最高。

The property of PP/carbon black conductive composite and the effect of toughener POE on the property of the composite were studied.

研究了炭黑填充聚丙烯导电复合材料的性能以及增韧剂对其性能的影响。

Using PP as matrix resin,POE as toughener,activated talc as reinforcer, compound for back cover of refrigerator compressor is prepared.

以聚丙烯为基料，POE为增韧剂，活化滑石粉为增强剂，研制出了冰箱压缩机后罩专用料。

Polypropylene was modified by using smelted ash powder/ EPDM rubber blends as toughener.

将粉煤灰与三元乙丙橡胶混炼后与聚丙烯树脂熔融共混进行增韧改性。

Suspects of DS and 26 cases of fetal amniocytes come from pregnant woman with high risk of DS were undertook to analysis 10 STR loci simultaneously by PAGE and silver staining or automated fluorescent laser activated detector sequencer (ABI310). 6 suspects of DS were determined as DS by trisomic triallelic with a ratio of 1: 1: 1 and the other STR loci show nonnal diallelic pattern with a ratio of 1: 1 or homozygous with two alleles of the same size. The other one suspect determined as DS by 7 STR marker showing trisomic diallelic band or peak.

将10个STR位点的PCR产物用聚丙烯铣胺凝胶电泳和银染法或基因片段扫描法进行检测，结果从23例可疑患者中发现7例DS患者，其中6例均出现三条带图谱，1例虽未发现3条带图谱，但除纯合子外其余位点均表现为双倍剂量（2：1）的2条带图谱。26例胎儿羊水细胞STR基因型均表现为正常2条带图谱（1：1），表明为非DS胎儿。

PP-90 had been developed in early 1990s by KBP design bureau in Tula, otherwise known for highly efficient and successful weapons, from submachine guns and up to tank and naval guns.

聚丙烯- 90已经制定了90年代初由kbp的图拉设计局，否则闻名高效率和成功的武器，从冲锋枪，直至坦克和舰炮。

The distributions of aminoacylase and alkaline phosphatase had been studied in the common seaweeds in Dalian area, and the Ulva pertusa Kjellm had been chosen as the target for isolation and purification. These two enzymes had been purified for a single band in the SDS-PAGE and their basic characteristics had been studied, too.

研究了氨基酰化酶和碱性磷酸酶在大连地区常见海藻中的分布状况，从中筛选出孔石莼作为纯化研究对象，并从孔石莼中分离纯化出了这两种酶，纯度达到了聚丙烯酰胺凝胶电泳一条带。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。