查询词典 polypropylene

The interelectrode dielectric adopts the polypropylene film with surface coarsening which is easy to impregnate so as to enhance the reliability of high-capacity capacitor.

极间介质为易于浸渍的表面粗化聚丙薄膜，特别提高了大容量电容器的可靠性。

The flexible interlayer was introduced into glass mat reinforced polypropylene composite by the grafting of rubber chain o nto fiber surface. And the effect of the kind and thickness of flexible interlay er on the interfacial adhesion and the mechanical properties of composites was investigated.

通过橡胶分子链在玻璃纤维表面的接枝，在玻璃纤维毡增强聚丙烯复合体系中引入了界面柔性层，研究了柔性层的种类及厚度对复合体系界面结合及力学性能的影响。

In this paper, problems found in using intermittent liquid bulkpolymerization to produce propylene were discussed, and the factors,which influenced the quality of polypropylene, were analyzed. A series ofmethods to solve the problems existed in the production of polypropylenewith intermittent liquid bulk polymerization were proposed.

本文对间歇式液相本体法聚丙烯生产工艺存在的问题及对聚丙烯产品的影响因素进行了分析，提出了一系列技术改进措施并应用装置生产中，促进了间歇式液相本体法聚丙烯的发展。

Repair: hernial sac resection and abdominal wall were sutured with silkthread layer by layer interruptedly,37 cases; 24 patients were running-sutured with "qiangsen" asorbed thread layer by layer; 2 patients whose abdominal defection were repaired with polypropylene melex and another with Dacron patch.

修补方法：疝囊组织切除，腹壁分层丝线间断缝合37例；"强生"可吸收线连续缝合 24例；腹壁缺损用聚丙烯丝网补片修补2例；Dacron修补腹壁缺损1例。

The heat transfer and burning behavior of the intumescent fire-retardant polypropylene were studied by the cone calorimeter to establish an essential physical model for the intumescence process in fire.

通过对膨胀阻燃聚丙烯材料在锥形量热仪实验条件下燃烧的分析和研究，建立了能够描述膨胀阻燃材料升温、燃烧过程的传热传质数学模型，分析了传热传质对材料裂解行为的影响。

Secondly, rheometer and polarized optical microscope were applied to monitor the isothermal crystallization process of polypropylene, and the relationship between crystal morphology and mechanical property was obtained.

第二，利用流变仪监测聚丙烯复合材料的等温结晶行为，将材料的结晶发展过程及形貌变化与材料的力学性能演化对应起来。

Methods: Polytetrafluoroethylene and polypropylene film electrets were prepared by constant voltage corona charging at room temperatures. The charge-store stability of PTFE and PP were studied by measuring isothermal surface potential decay after different dose of ultraviolet radiation.

用常温恒压电晕充电系统将聚四氟乙烯和聚丙烯两种材料极化制备成驻极体；用补偿法测量不同剂量的紫外照射后驻极体的表面电势。

Needless to say, Kevlar represents a significant improvement over the polypropylene and paper used in most monitors for this price.

我们新的5低音单体是使用Kevlar纤维，而这个通常都是预留给高价位的监听喇叭所使用的。

ABSTRACT Polyolefin materials, such as high density polyethylene , linear low density polyethylene and polypropylene have been widely used in a variety of fields because of the combination of excellent chemical and physical properties.

聚烯烃材料如高密度聚乙烯、线性低密度聚乙烯、聚丙烯等具有良好的综合性能，在热塑性塑料中是生产量最大的通用塑料材料，在国民经济中占有重要地位。

Low Profile Gear Operator features high efficiency worm gear drive with built-in position indicator and high impact polypropylene handwheel.

低高度的齿轮操作机构配置高效蜗轮驱动结构，并内置位置指示器和高强度抗冲击的聚丙烯手轮。

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。