论述了炼油装置区内污染雨水的来源和处理排放的必要性；
This article briefly talks on the source of pollutant rainwater inside battery limit of refining unit and necessity of its treatment and drainage.
乘客也不会在船上迷路，因为每层甲板的电梯旁都有一个计算机化客房搜寻装置，可显示7个街区内的回家路线。
So passengers cannot get lost, a computerised room finder on each floor near the lifts makes sure they can find their way home through the ship's seven neighbourhoods.
本文介绍在该公司引进的加氢裂化装置反应区内，连接设备用的奥氏体不锈钢有缝管的情况。
Austenitic stainless steel seam tubes used to connect the equipments within the reaction zone of a hydrocracking plant imported by the Incorporation are introduced in the paper.
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