They talked long and learnedly, and consulting a sort of map they had drawn; there was an engineer among them, and a mining expert; one appeared to be a big landowner or manager of works.

他们聊了很久， 学问，并查阅了他们绘制的地图; 其中有一名工程师和一名采矿专家; 其中一个似乎是大地主或工程经理。