这些203mm履带式自行榴弹炮对乌克兰的防御作战至关重要，特别是在俄乌武装冲突爆发后的最初几个月，在基辅保卫战和随后的东线作战期间发挥了重要作用。经过三年多的战斗，现在这些巨型火炮的弹药已经严重短缺。

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在指挥官舱盖的右侧，安装有辐射与化学侦察仪（PRHR）的取样空气进气罩。 2S7的主要武器是一门203.2毫米2A44型线膛火炮，敞开式安装在车体后部的上座上。 火炮的炮管长度为55倍口径，安装在炮架吊耳中，并与后坐制动器和复进机的活塞杆相连。 • 后坐制动器 ...

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