| 摘要 |
<p>A drain adaptor comprising a stem and drain body. The stem comprises a breather opening defined by a surface of the stem and a drain opening defined by a surface of the stem. The drain body comprises another breather opening defined by a surface of the drain body and another drain opening defined by a surface of the drain body, wherein the stem extends from the drain body, and wherein a breather passageway extends from the breather opening of the stem to the other breather opening of the drain body, and wherein a drain passageway extends from the drain opening of the stem to the other drain opening of the drain body.</p> |
