Thomas is -strictly speaking -a "side tank engine" -a steam locomotive that has tanks arranged on either side of the boiler.
严格地讲，这个叫做托马斯的火车头是一个两边都装有水和燃料罐的蒸汽火车。
2
NJU automatic controllers used for the preheating boiler and converter unit of diesel locomotive are developed for the replacement of the similar equipment in V_(1003) and V_(100) diesel locomotives.
The boiler used by such locomotive was the one removed from a small winder, the wheel being bought as the waste cast iron, and the body framework was made from U-shape iron.