超重型火炮要么固定设置，要么装在火车上。 固定火炮往往设置在坚固的混凝土和钢铁堡垒中。
The super-heavy batteries are either fixed or on railway mountings, and fixed batteries are often In strong concrete and steel forts.
超重型火炮要么固定设置，要么装在火车上。 固定火炮往往设置在坚固的混凝土和钢铁堡垒中。
The super-heavy batteries are either fixed or on railway mountings, and fixed batteries are often In strong concrete and steel forts.
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