聚丙烯

The bottles are made from Polyether Sulphone, which is a BPA-Free material with a natural honey-colored tint, for extra durability and ease of cleaning.

此奶瓶由不含BPA的聚丙烯材料制成，呈自然蜂蜜色。高度耐用，易于清洗。

As well, comparisons of CPVC and PP on the aspect of properties and chemical impedence data were tabulated.

同时比较了CPVC与聚丙烯的性能和化学阻抗数据。

We amied the BCP sequence and the preS2 gene sequence of HBV separately as the target region, according to HBV DNA sequence of Chinese strain, synthesized the set of specific primers, amplified the sequence by PCR method from the serum of patients with CHI, verified by restriction analysis, subcloned into pGEM Teasy vectors, employed polyacrylamide gel electrophoresis to display the deletion mutation and selected the clones with differential length to be sequenced.

本研究应用PCR技术及其他分子生物学技术，分别以HBV转录调控序列BCP以及表面蛋白编码序列pre S2为靶基因，以中国株HBV基因序列为依据，设计特异性多聚酶链反应引物，分别自43例、51例慢性HBV感染患者血清中扩增出目的片段，构建质粒Teasy-BCP和Teasy-pre S2，酶切鉴定后，采用聚丙烯酰胺凝胶电泳技术展示缺失突变，再经DNA测序以了解在慢性乙型肝炎患者体内的病毒变异情况。

A series of tri-block copolymers of styrene/tetradecyl methyl acrylate/3-methacryloxyl-propyl thimethoxyl silane was synthesized by atom transfer radical polymerization. The structures of those copolymers were characterized by means of gel permeation chromatography, infrared spectrum, and nuclear magnetic resonance (1H-NMR). Effect of tri-block copolymers on the mechanical properties of glass fiber/polypropylene composites was also investigated.

采用原子转移自由基聚合法合成了一系列新的三嵌段共聚物大分子偶联剂聚苯乙烯－b-聚甲基丙烯酸十四酯－b-聚3-甲基丙烯酰氧基丙基三甲氧基硅烷，通过凝胶渗透色谱、红外光谱和核磁共振(1H-NMR)证实了其结构，并研究了其对玻璃纤维／聚丙烯复合材料力学性能的影响。

Methods: For 4 tetrameric STR loci (D5S818, D8S1179, D18S51and D21S11) genetic research, monoplex PCR methods were established to study the allele frequency and the applicability of forensic medicine.

应用聚合酶链反应，聚丙烯酰胺凝胶电泳及银染分型技术，对延边地区109名朝鲜族无关个体进行群体调查，获得四种基因座的群体遗传学资料。

The combination effect of hindered amine light stabilizers PDS copolymer of 2,2,6,6 tetramethyl 4 piperidinyl methacrylate(TMPM with styrene with several kinds of antioxidant in polypropylene under γ irradiation was studied in this article.

研究了受阻胺光稳定剂 PDS4-(甲基丙烯酸- 2 ，2 ，6 ，6 -四甲基哌啶醇酯和苯乙烯的共聚物与几种类型抗氧剂在γ-辐射下在聚丙烯中的并用效应。

Polypropylene ; thermotropic liquid crystalline polymer ; hybrid composite ; mechanical properties ; dynamic mechanical analysis

聚丙烯；热致液晶聚合物；混杂复合材料；力学性能；动态力学分析

The tensile test and dynamic mechanical analysis were conducted to investigate the mechanical properties of polypropylene/thermotropic liquid crystalline polymer/glass fiber hybrid composites with a good TLCP fibrils structure.

对具有良好液晶聚合物微纤结构的聚丙烯/热致液晶聚合物/玻璃纤维混杂复合材料，使用静态拉伸和动态力学分析的方法研究了材料的力学性能。

With titanite as the surface modification agent of sericite, the effects of the dosage of modification agent, massic ratio of midium/sericite, density of slurry, grinding time, temperature and pH value on the surface modification were analyzed. The properties of polypropylene filled with the moth- fled filler were tested.

采用钛酸酯偶联剂作为表面改性剂研究了改性剂用量、介质物料比、磨矿浓度、改性时间以及温度和pH值对改性效果的影响，并对最终改性产品填充聚丙烯后的复合材料进行了性能测试。

Base on the analysis, organophosphate inducible system has been established by treatment of the swimming seedling and drenching roots with organophosphate solution. This inducible system consists of model plant Arabidopsis thaliana and methamidophos, folimat or methyl parathion which are the representative types of highly toxical OPs. Meanwhile, the responses of the esterase isozymes and the total soluble proteins to OPs in Arabidopsis thaliana have been detected by Native-PAGE and SDS-PAGE.

在此基础上，采用模式植物拟南芥和甲胺磷、氧化乐果和甲基对硫磷三种极具代表性的高毒高残留有机磷农药，通过水培和灌根的方法，建立了有机磷诱导系统，并应用变性与非变性聚丙烯酰胺凝胶电泳技术，研究了拟南芥酯酶同功酶和可溶性总蛋白对有机磷胁迫的响应。

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。