将该问题的基本方程化为具有两个小参数的二阶非线性方程组，并在双参数摄动法和单参数多重尺度法的基础上提出了双参数多重尺度法。
The governing equations for the problem is modified into a second-order nonlinear differential system with two infinitesimal parameters and a double parameter multiple scale method is presented.
介绍单组份聚氨酯弹性填缝剂的一步法合成中高分子量聚醚多元醇的应用及其对填缝剂性能的影响。
The effects of the use of high molecular weight Polyether polyol on the mechanical properties of PU sealant have been studied in one step synthesis of one component PU elastic sealant.
本文就单组份红外光谱快速定量，吸光度的测定采用基线法。
This paper describes a method of measuring peak-height with a computer program for single component quantitative analysis in infrared spectroscopy.
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