opes

Study on the background value of stable iso ■ opes in precipitations of China

我国大气降水稳定同位素背景值的研究

If progress is obtained on combustion and exhaust , OPEs will have a bright application prospect .

若能在燃烧性能上有所完善，则具有良好的应用前景。

This paper introduces a commercial PC version of OPES ( Organic physical Property Estimation System ) from the software point of view .

本文主要介绍有机物性估算系统OPES（OrganicphysicalPropertyEstimationSystem）微机版本的软件特性。

In the absence of cylinder head assemblies ( cylinder recharging realized by pistons switch cylinder air ports ), OPEs possess a relatively simple structure , which helped to reduce the overall quality . 3 .

由于没有缸头组件，通过活塞开关气口实现气缸换气，因此OPEs结构相对简单，有利于减轻结构的整体质量。