名词
中文翻译：双心筒枪管
同义词：
['double-barreled gun barrel', 'double-barreled rifle barrel']
例句：
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1. This double core barrel is designed for long-range shooting.
这个双心筒枪管是为长距离射击设计的。
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2. The double core barrel is a popular choice for hunting and target shooting.
双心筒枪管是狩猎和射击目标的热门选择。
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3. The double core barrel has been tested to withstand extreme temperatures.
双心筒枪管经过测试，能承受极端温度。