Aside from the aesthetic differences, the only physical difference was an additional piece of foam inside the cheaper HD555 headphones, blocking about 50% of the outside-facing vents.
撇开美学的差别，唯一的物理差别就是在较便宜的HD 555耳机内部多了一块泡沫，阻挡了约50%的外向通风孔。
The feasibility of the foam rubber surface processing by physical vapor deposit coating was discussed.
并探讨了物理气相沉积涂层法对泡沫橡胶表面进行处理的可行性。
The changes in mechanical and physical properties and chemical structure of polyvinyl formal (PVFM) foam caused by hygrothermal ageing tests were studied by means of IR and other measuring methods.
用红外光谱和其他测试方法对聚乙烯醇缩甲醛(PVFM)泡沫材料湿热老化前后力学性能、物理性能和化学结构的变化进行了研究。
After analyzing the physical process of polyurethane foam formation, such conclusions can be got: bubble nucleation and bubble growth affect cell size primarily.
通过对泡沫合成中的物理过程系统分析得出：泡沫的孔径大小主要受气泡成核与气泡生长两阶段的影响。
Physical properties like mechanical, fire retardant and aging properties et al and applications of rigid polyurethane foam are reviewed.
对硬质聚氨酯泡沫塑料的物理性能，如力学性能、阻燃性能、老化性能等及其在工程上的应用情况进行了综述。
The cell size enlarging agent permits the formation of a foam with large cell sizes that are desirable to achieve a high insulation value and to optimize the physical properties of the foamed product.
孔度放大剂可实现具有较大孔度的泡沫的形成，这对于获得较高的绝热值和优化发泡产品的物理性能是希望的。
A polymer polyol derived from the stabilizer has low viscosity compared to those of prior products and contributes to the improvement in the physical properties of the resulting polyurethane foam.
得自该稳定剂的聚合物多元醇具有与现有技术的产物相比低的粘度，并有助于改善所形成的聚氨酯泡沫的物理性质。
According to the similarity of physical behavior of foam separation process and chemical reaction process, the equivalent chemical reaction constant is introduced.
根据泡沫分离与化学反应过程在物理行为上的类似性，引入等效的化学反应常数，对实验方法进行了宏观动力学研究。
Disclosed herein is a novel stabilizer for preparing a polymer polyol, which is used to prepare polyurethane foam having improved physical properties.
本文公开了一种新型的用于制备聚合物多元醇的稳定剂，该聚合物多元醇用于制备具有改善的物理性质的聚氨酯泡沫。
The existing development of CNP-102GB physical products can be widely used in polyolefin foam system.
现行开发的CNP-102GB产品可广泛应用于聚烯烃物理发泡体系。
The effect of the blowing agent and curing system on the curingblowing behavior and physical properties of NR/SBR foam was investigated.
探讨发泡剂和硫黄硫化体系对NR/SBR并用海绵胶硫化发泡特性和物理性能的影响。
The premix is provided with good stability, and the foam has good physical properties.
制得的组合料具有较好的贮存稳定性，泡沫具有良好的物性及绝热性能。
This Paper studies the relationship between density of flexible polyurethane foam and it's physical-mechanical properties Under the condition of different amount of water as blowing agents.
本文用水作发泡剂，通过变化用水量，研究软质聚氨酯泡沫塑料的密度与物理机械性能之间的关系。
The foam ceramics with a very uniform macrostructure and few flaws were produced by recoating process, the physical chemistry transformation;
通过涂覆处理获得缺陷较少、结构均匀的泡沫陶瓷体。
The foam ceramics with a very uniform macrostructure and few flaws were produced by recoating process, the physical chemistry transformation;
通过涂覆处理获得缺陷较少、结构均匀的泡沫陶瓷体。
应用推荐