我是荷兰陆军一名潜水医学军官，专业潜水中会在水面用氧气来进行快速减压。

I am a diving medical officer of the Dutch army. One of the methods of professional diving is with surface decompression, using oxygen for a faster decompression.

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在从荷兰、英格兰、苏格兰以及普鲁士聘请来的军事以及海军专家的帮助下，他建立了一支装备精良的新式陆军，并从零开始建立了俄罗斯海军。

With the aid of military and naval experts hired in Holland, England, Scotland and Prussia he created and equipped a new-style army and built a Russian navy from scratch.

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