| 释义 |
neutra
基本例句
诺伊特拉
Use aquious solution of commonneutraalkaline cleaners,therefore it is ecomomic and practical.采用环保中性、酸性、碱性清洗剂水溶液，经济实用。
By making use of the similar methods described in reference; , a series of criterions on the oscillatory properties ofneutral hyperbolic equations were established.研究一类变时滞的中立型双曲方程解的振动性质，利用与文献;相类似的方法和泛函微分方程的某些结果，建立了若干振动性的判别准则。 |