PTT的例句大全

there are two ptt preparation methods, the ester exchange and direct esterification.

通常PTT有两种制备方法：酯交换法与直接酯化法。

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the task is highly active ptt polymerization catalysts preparation by means of direct esterification method to use pta and pdo as raw material direct esterification synthesis of ptt. two aspects were under consideration: one is organic titanium system catalyst, the other is inorganic composite catalyst.

本课题针对以PTA与PDO为原料按照直接酯化法合成PTT的催化剂进行研究。研究内容主要包含两个方面：一是有机钛系催化剂，二是无机复合型催化剂。

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using continuous pad dyeing process at optimum conditions, the ptt fabric features excellent elasticity.

采用连续轧染工艺，对其进行了印染加工试验，优选工艺条件，并获得弹性较好的PTT织物。

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dyeing time would not affect both the drawing recovery and the bending recovery of ptt filament.

但染色时间对拉伸和弯曲回弹率基本没有景响。

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the optimum dyeing process on ptt and pla fabrics with ultrasound were established by the single factor analysis.

通过单因素分析，探讨了大黄素天然染料上染PTT和PLA纤维的最佳染色工艺。

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this article discusses the dyeing function of ptt fiber, and dyes and finishes the double knitted fabric.

探讨了PTT纤维的染色性能，对设计的双面针织面料进行了染色和整理实践。

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study on low temperature disperse dyes to dyeing function of ptt fiber

低温分散染料对PTT纤维的染色性能研究

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message transfer agent operated by a public service provider or ptt (post, telegraph, and telephone administration), or a client mta.

MTA由公共服务提供商或PTT（邮政、电报和电话管理）或客户MTA负责操作。

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development of ptt weft suede fabric and performance analysis

PTT纬编麂皮绒织物的开发及性能研究

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based on the results, it turned out that the extensibility and rebound elasticity of ptt blended spun yarn were mainly determined by the proportion of ptt staple in the yarn.

根据我们初步分析，纱线的弹性，包括延伸性和回弹性，主要由PTT纤维的混纺比例决定。

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cheese dyeing of ptt elastic yarn

PTT弹性纱线筒子染色工艺

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cheese dyeing of ptt fiber

PTT筒子纱染色

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the result of differential scanning calorimetry ( dsc) indicated that the crystallization temperature of ptt increased obviously under the influence of self-seeding nucleation.

示差扫描量热结果表明，经过自晶种成核处理后，PTT的结晶温度明显增加。

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the conclusions are as follows: 1. ptt fiber has lower breaking strength, lower initial modulus and higher breaking elongation than pet fiber, whose breaking elongation is similar to high shrinking pet fiber, and all these indicate that ptt fiber has good extensibility and softness.

PTT纤维的强度不如PET，但断裂伸长却远高于普通PET纤维，与高收缩PET相近，拉伸模量也比PET小，尤其是纤维的初始模量小，说明PTT具有良好的延伸性和柔软性；

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this paper covers the properties of ptt fiber and in detail elucidates the dyeing and finishing process of ptt elastic yarn cheese, ptt composite fiber material and ptt carpet etc.

本文探讨了PTT纤维的性能，并详细介绍了PTT弹性纱线筒子纱、PTT复合纤维面料以及PTT地毯等特殊PTT纤维产品的染整加工工艺。

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a designed organic compound of triazine thiols monosodium(ttn) was used for preparing polymeric film(ptt) on pure copper by polymer plating.

通过有机镀膜的方法，利用一种自设计合成的三嗪硫醇化合物（TTN）在铜。面制备有机薄膜。

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Keep pressing the PTT button down and speak with a normal voice into the apparatus.

继续按PTT按钮下来并且用正常声音讲话入用具.

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The differences between the bicomponent PTT and T 400 in the appearance and performance are described.

介绍了双组分PTT和T400在外观及性能上的差异,初步解释了造成这种差异的原因.

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The kinetics of PTT direct esterification under different temperature was studied.

研究了不同温度下PTT( 聚对苯二甲酸丙二醇酯)直接酯化反应动力学.

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As a new fiber, the excellent performances of PTT are noticed: elastic recovery and easy dyeing.

PTT 纤维是一种新型纤维, 具有优异的回弹性和易染性.

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