1) Large caliber twin-tube guns
中大口径双管火炮
2) large caliber gun
大口径火炮
1.
In regard to large caliber gun,rotating band impact problem is hard to avoid in the course of projectile loading.
对于大口径火炮而言,在弹丸装填过程中弹带难免受到磕碰,严重的磕碰会使弹带的闭气性能下降,影响火炮的射击密集度。
2.
Solving emergent problems of large caliber gun maintenance support are to comprehensively consider mixing and inference technology such as state mechanics characteristics,working state monitoring parameters and conventional expert experience.
综合考虑状态力学特性、工况监测参数、传统专家经验的融合和推理技术,是解决大口径火炮维修保障任务的紧迫问题。
3.
Temperature field of large caliber gun barrel was analyzed using FEA method and the analytical results of naturally cooled monobloc barrels and actively cooled composite barrels were compared with each other.
利用有限元软件分析了某大口径火炮身管的温度场分布 ,并对自然散热条件下的单筒身管和主动冷却条件下的复合身管温度场进行了比较 ,其结果为 (1)身管温度场分布存在初始和正规工况阶段 ,后者的单筒身管热状态可以通过测定任意两发身管外表面温度来评估 ;(2 )持续射击过程中 ,单筒身管始终处于非稳态导热过程 ,主动冷却身管则包括非稳态和准稳态两个过程 ,实现了身管热状态由不可控向可控转变 ;(3)对流传热系数h和身管壁厚δ的组合对降低内膛温度具有很大影响。
6) twin-tube guns
双管火炮
补充资料：中大
1.宋代京官候选人的别称。
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