Objective To analyze clinical characteristics of peptic ulcer in elderly (PUA).

目的探讨老年性消化性溃疡的临床特点。

The big buzzwords in Japan are kakusa kakudai (growing inequality) and waakingu pua (literally, “working poor”).

日本目前的流行词是kakusa kakudai（增长的不平等）和waakingu pua（意即“穷忙族”）。

In this dissertation, a research has been made on the Ultraviolet (UV) cured colored paints and visible light cured varnishes of PUA.

本文主要研究了聚氨酯丙烯酸酯的紫外光固化色漆和可见光固化清漆的制备、涂布、固化及固化后的漆膜综合性能。

By mechanical property testing, showing that there is not much changing comparing to PU, the modified PUA still have good mechanical properties.

通过力学性能测试，表明改性后的PUA较PU没有太大的变化，依然具有PU的良好力学性能。

The effect of addition manners of reactants, reactant ratio, catalyst types, and reaction temperature, etc on the viscosity of PUA was studied in detail.

详细研究了加料方式、反应物配比、催化剂、反应温度等因素对PUA黏度的影响。

The UV Curing polyurethane (PUA) was blended with chlorinated polyvinyl chloride (CPVC) for Pervaporation membranes, which were used to separate ethanol water mixture.

将聚氨酯丙烯酸酯齐聚物(PUA)与过氯乙烯(CPVC)共混制成渗透汽化膜并用来分离乙醇水溶液。

UV-cured films of the said two kinds of PUA resins have good water resistance, solvent resistance and acid resistance, but strong base resistance thereof is on general level.

上述水性光固化树脂固化膜具有良好的耐水、耐溶剂和耐酸性，但耐强碱性一般。

This paper has described the raw materials and their functions for preparation of polyurethane-acrylate dispersion (PUA) and the typical preparation technology of the dispersion.

介绍了制备聚氨酯-丙烯酸酯(PUA)分散体用的原料及其作用，以及典型的制备工艺及其特点。

The UV curable coating of fiber ribbon was prepared by blending bisphenol A epoxy acrylate(EA) and polyurethane acrylate(PUA)and adding reactive diluent, photoinitiator and pigment.

采用双酚A环氧丙烯酸酯（EA）和聚氨酯丙烯酸酯（PUA）共混，加入活性稀释剂、光引发剂、颜料等制备了紫外光固化光纤涂料。

In this paper, we brief introduced the polyurea and polyureathane which use for the construction waterproof coating, and the properties of PU and PUA in the application of construction waterproof.

本文简要介绍了用作建筑防水涂料的聚脲与聚氨酯的相同点和不同点，以及施工中注意的问题。