opl是什么意思

用法例句

Calculation of oil pressure for hoister' s hydraulic station in different ways;

不同提升方式提升机液压站油压的计算

Analysis and elimination of low oil pressure phenomenon while switching oilpumps of large axial-flow fans;

大型轴流风机油泵切换低油压现象的分析及改造

Automatic control of oil vessel & oil pressure of speeder;

调速器压油罐油压和油面的自动控制

Design of synchronious control system for 200 MN hydraulic press with two cylinders;

200MN双缸油压机同步控制系统的设计

This paper introduces the reason why the pump of 90MN hydraulic press broken frequently and the improvement measure.

介绍90MN油压机其中部分泵频繁损坏的原因分析及改进措施。

The remadehydraulic press has such advantages as nimbleness for controlling and high reliability for opera-tion, therefore automitation of forming boiler seal cover can be realized.

本文介绍了用自行研制的电液控制系统将１０００ｔ锅炉封头水压机改造为油压机。