oil pit

用法例句

For instance,the effectiveness of fire-extinguishing device,whether or not necessary to install the tap changer and how to determine the economic ratio of losses between no load and on load.

本着节能、环保观点,经过调查分析建议:应取消目前的变压器防火装置,开发新型有效的防火装置;大多数发电厂可以取消主变压器的分接开关;在不增加制造成本前提下,根据变压器运行负载率,经济合理地调整变压器的空载、负载的比例。