名词
中文翻译：Unknown
同义词：
['heavy artillery', 'heavy gun']
例句：
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1.The heavy howitzer was a marvel of engineering.
这台重型榴弹炮是工程学的奇迹。
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2. The heavy howitzer was used to bombard the enemy's positions.
重型榴弹炮被用来轰炸敌人的阵地。
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3. The heavy howitzer was a formidable weapon in the war.
在战争中，重型榴弹炮是一种可怕的武器。