名词
中文翻译：单阀背包泵
同义词：
['single valve backpack pump', 'single valve backpack pump']
例句：
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1. This single valve knapsack pump is designed for outdoor activities.
这款单阀背包泵是为户外活动设计的。
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2.The single valve knapsack pump is easy to use and can be used in various environments.
这款单阀背包泵易于使用，可以在各种环境中使用。
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3.The single valve knapsack pump is a popular choice for those who need to carry heavy equipment.
这款单阀背包泵是那些需要携带重型设备的人的首选。