By using new type tube arrangement, rationally adjusting support spacing of cooling tubes, and replacing cooling tubes, the old condenser was retrofitted in overhaul period.

通过采用新型排管方式、合理调整冷却管支撑间距，并同时更换冷却管材的方法在大修期内对凝汽器进行了改造。

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Vacuum tube encryption arrangement looks easy, it is very difficult, the main problem is a liner tube hole connection is too narrow after the processing difficulty, easy deformation.

真空管加密排列看起来容易，做起来是很难的，主要问题一是内胆管孔连接处过窄后加工难度大，极易变形。

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The effect of in-bed tube structure on bed fluidization as well as that of the fluid-bed combustion on heating surface arrangement is also discussed in the paper.

论述了埋管结构对流化质量的影响，以及沸腾层燃烧份额对受热面布置的影响。

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Among the benefits promised under the new arrangement are a new tube line, a cap on fares, more late-night trains and air conditioning to prevent sweltering summertime conditions.

BBC: Tories propose tube sell-off