analysis the for nonperpendicularity between the trunnion and vertical axis , and nonperpendicularity between the trunnion and gun bore axis is also given.
并且对炮耳和竖直不垂直,炮和炮耳不垂直进行了分析;
analysis the for nonperpendicularity between the trunnion and vertical axis , and nonperpendicularity between the trunnion and gun bore axis is also given.
并且对炮耳和竖直不垂直,炮和炮耳不垂直进行了分析;
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