查询词典 mechanical

An experimental investigation was carried out to study the effect of carbonation on mechanical properties and durability of concrete.

本研究利用加速试验法探讨碳化对混凝土力学性质与耐久性之影响。

Effects of RE content on mechanical properties and abrasion resistance of high carbonic chromium cast steel were studied.

高碳铬铸钢具有较高的硬度和优良的耐磨性，在理论研究和实际应用上引起了人们极大的重视[1] 。

The carbonization have a important function in the mechanical industry.

渗碳工艺在机械行业中扮演着重要角色。

The impact of carding machine on the quality of spunlace nonwoven product comes from two major aspects: one is the mechanical reason, such as the gap between rollers ,the specification of wires, the design of each part, the number , kind and distributing of rollers etc.

梳理机对水刺非织造布产品质量的影响主要从两大方面产生，一方面是机构特性，例如隔距、针布规格、各个部件的设计、辊子的数量、种类和分布等。

Objective:To investigate the effects of mechanical ventilation with synchronous and asynchronous extrasternum heart compression on cardiopulmonary resuscitation.

目的：探讨与胸外心脏按压同时和非同时机械通气在心肺复苏中应用的效果。

Compared with homo-polymimdes and copolymimdes,PAIs can evidently improve mechanical properties while maintaining excellent solubility,high Tg and thermal stability of fluorenyl cardo polyimides.

与均聚PI，共聚PI相比，PAI在维持芴基Cardo型PI优异的溶解性，高的玻璃化转变温度及热稳定性的同时，明显改善力学性能。

The results show that the introduction of fluorenyt cardo groups can;a.evidently increase Tg;b.partly improve the solubility but the effect is not outstanding;c.not decrease thermal stability;d.not decrease mechanical properties when the molar content of cardo group is low.

结果表明Cardo结构的引入可以；a。明显提高Tg；b。部分改善溶解性，但效果不明显；c。不降低热稳定性；d。当Cardo基团的摩尔含量较低时，不降低力学性能。5。

Tg=265℃ and poly with cardo groups (PEK-c, Tg=225℃) are new types of thermoplastic resins used as engineering plastics for their high temperature mechanical properties, electrical insulation, radiant resistance and thermal-oxidative stability.

酚酞型醚砜（PES-c，Tg=265℃）和酚酞型聚醚酮（PEK-c，Tg=225℃）均为新型热塑性树脂，具有很高的耐热性，优良的高温机械性能，电绝缘性，热氧稳定性和耐辐射性，作为工程塑料将具有广泛的用途。

Compared with the composites made of high density polyethylene , carbon black and graphite by solution blending, the composites made of polyphenylene sulfide , polyarylethersulfone with cardo group , short carbon fiber and carbon black by mechanical blending are provided with better repeatability of electrical resistivity.

聚苯硫醚和酚酞型聚芳醚砜与碳纤维和炭黑机械共混所得复合材料和高密度聚乙烯与炭黑和石墨溶液共混所得复合材料相比，前者具有电阻率较易控制、重复性较好的特点。

In this study, the electrical conductive composites (comprised of thermoplastic matrix resins-high density polyethylene, polyphenylene sulfide and polyarylethersuifone with cardo group, and conductive fillers-short carbon fiber, carhon black and graphite) are prepared and characterized in detail. The relation among composite structure and directalternating electric properties, some electric and magnetic parameters under X-band microwave and shielding effect, the mechanical behaviour are analysed. And furthermore, some relative experimental devices are developed.

本工作利用短切碳纤维、炭黑、石墨为导电填料填充热塑性树脂高密度聚乙烯、聚苯硫醚、酚酞型聚芳醚砜，制得具有良好导电性能和机械性能的导电性高分子复合材料，并以此为对象，研究了材料的稳恒电场和交变电场的基本特性与材料结构的关系，研究了在X波段微波场下的电磁参量及屏蔽效应，以及研究了复合材料及其基体树脂的力学行为，与此同时还建立了相应的表征测试手段。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。