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1·1839 - William Otis receives a patent for the steam shovel.

1839年的今天，威廉·奥蒂斯收到了蒸汽铲的专利权。

2·Before the presentation, Walter from Microsoft smiles his steam shovel jaw like a marketing tool tanned the color of a barbecued potato chip.

在展示会之前, 沃特尔,微软顾问,象一个涂着烧烤土豆片颜色的销售机器，熟练的冲着我微笑.

3·A power shovel that is driven by steam.

用蒸汽驱动的动力铲。

4·The story of an Irish steam-shovel artist and his old-fashioned steam-shovel, Mary Anne.

一位爱尔兰蒸汽铲车艺术家和他的老式蒸汽铲车玛丽·安妮的故事。