聚丙烯

Crystallization behavior of isotactic polypropylene were studied and observed by polarizing microscope,and also compared to that of PP/MMT composites.

采用偏光显微镜对全同立构聚丙烯等温结晶行为进行系统的研究，并与聚丙烯/蒙脱土复合材料的结晶行为进行比较。

A study is presented concerning the three different structural levels of isotactic polypropylene.

本文应用光学显微镜，扫描和透射电子显微镜从三种不同层次的结构水平上研究了α和β两种晶型的全同立构聚丙烯的球晶和晶片形态结构，特别是应用四氧化钌染色技术直接观察到两种不同晶型聚丙烯球晶中单独分离的晶片形态。

In other cases, aramid fiber or polypropylene might be considered over aluminum or Kraft paper.

其他方面，纤维、聚丙烯相对于铝、牛皮纸，纤维、聚丙烯的功能材料，将会成为我们的首选。

A CEVd strain was isolated from Heibei province in China and its complete nucleotide sequences were identified.Accounting to the characteristic of structure of viroid, the nucleic acid from the positive material was detected by bidirectional PAGE.

柑桔裂皮类病毒快速检测技术体系的建立聚丙烯酰胺双向凝胶电泳法检测：将从阳性材料上提取的类病毒核酸，先在6％的聚丙烯酰胺非变性胶上进行第一向电泳，然后切割含类病毒分子的胶条，在变性条件下进行垂直或反向电泳，最后银染观察。

The special PP material for sound box is developed with polyolefin elastomer and ethylene/propylene/diene copolymer as the tougheners, polypropylene grafted with maleic anhydride as the compatibilizer and talcum as the inorganic fillers.

以聚烯烃弹性体和共聚物为增韧剂，马来酸酐接枝聚丙烯为增容剂，滑石粉为无机填科研制音箱用聚丙烯专用料。

Composition of low molecular weight glutenin subunits and gliadins were investigated with thirty common wheat cultivars which are widely grown in Shangdong province. In our study we used acid polyacrylamide gel electrophoresis and SDS-polyacrylamide gel electrophoresis, analysed Sedimentation test, Protein content, Mixing time, Stability, Max-resistance to extension, Farinograph Quality Number and Extensogram area of the 30 common wheats. They have close relationship with the technology properties of noodle wheat cultivars.

本研究通过酸性聚丙烯酰胺凝胶电泳和SDS-聚丙烯酰胺凝胶电泳，分析了30个山东省种植面积较大且具有部分代表性的普通小麦品种的低分子量麦谷蛋白亚基和醇溶蛋白组成，测定了30个品种的蛋白质含量、沉淀值、面团形成时间、稳定性、粉质评价值、最大拉伸阻力和拉伸曲线面积等面粉及面团主要品质性状，分析了低分子量谷蛋白亚基和醇溶蛋白组成与面条小麦品质性状的关系。

The flocculation of fine diaspore, kaolinite, illite and pyrophyllite were systematically investigated by the sedimentation test using anionic ployacrylate (AP7), cationic ployacrylate (CP3), carboxymethyl cellulose and a new organism HSPA as flocculants.

采用沉降试验法系统地考查了阴离子聚丙烯酰胺(AP7)，阳离子聚丙烯酰胺(CP3)，羧甲基纤维素和有机絮凝剂HSPA对细粒一水硬铝石、高岭石、伊利石和叶腊石4种单矿物以及人工混合矿的絮凝性能。

As per the material, they have nylon rope, plastic rope, PE Rope, PP rope, PVC Rope, Cotton rope, Jute Rope, Sisal Rope, Mixed Rope, Nylon Twine, Plastic Twine, Cotton Twine, Jute Twine and Sisal Twine. As to the construction: Twisted rope and braided Rope.

根据材料分：有尼龙绳、塑料绳、聚乙烯绳、聚丙烯绳、PVC绳、棉绳、黄麻绳和剑麻绳、各种材料的混纺绳，尼龙线、塑料线、聚乙烯线、聚丙烯线、棉线、黄麻线和剑麻线。

Objective:A GF-AAS method was established for the determination of lead in tipping paper,filter plug wrapping paper,diacetate cellulose tow,polypropylene fiber tow,glycerol triacetate for cigarette,polypropylene fiber tow filter rod adhesive,polyvinyl acetate emulsion adhesive,hot melt adhesive.

目的：建立了接装纸、成形纸、醋纤丝束、聚丙烯丝束、三醋酸甘油酯、聚丙烯丝束胶粘剂、白乳胶、热熔胶等8种滤嘴用卷烟材料中铅的测定方法—石墨炉原子吸收光谱法。

The high melt strength polypropylene resin consists of component A of original eco-tourism, component B of polyvinyl resin category, component C of acrylics compound, wherein the percentage by weight of the component A is 50 percent to 94.5 percent, the percentage by weight of the component B is 5 percent to 40 percent, the percentage by weight of the component C is 0.5 percent to 10 percent; the optimized scope of the percentage by weight of the component B is 10 percent to 40 percent, the optimized scope of the percentage by weight of the component C is 1 percent to 10 percent.

高熔体强度聚丙烯树脂由A组分为原生态聚丙烯树、B组分为聚乙烯树脂类，C组分为丙烯酸酯类化合物组成；其中A组分的重量百分比为50％～94.5％，B组分的重量百分比为5％～40％，C组分的重量百分比为0.5％～10％；其B组分的重量百分比的最优范围为10％～40％，C组分的重量百分比的最优范围为1％～10％。

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。