A first inwardly extending annular shoulder is provided between the sealable opening and the bottom opening, defining a flow passage along a longitudinal axis of the housing.
在可密封的开口和底部开口之间设置一第一向内延伸的环形肩部，该环形肩部沿着外壳的纵轴线限定出一流通通道。
A first inwardly extending annular shoulder is provided between the sealable opening and the bottom opening, defining a flow passage along a longitudinal axis of the housing.
在可密封的开口和底部开口之间设置一第一向内延伸的环形肩部，该环形肩部沿着外壳的纵轴线限定出一流通通道。
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