retaining valve的用法和樣例：
例句
- Check valve guiding shall be plastic to plastic.
止回閥引導裝置應該是塑料對塑料。 - "accommodation note, lip service"
空頭支票 - A drip coffee maker can stop working if the one-way valve gets clogged.
如果單向閥堵了，電熱過濾咖啡機就不能用了。 - A one-way valve both prevents leakage and provides a consistent product dosage to the ball applicator.
單向閥既防止泄漏，並提供一致的產品劑量球噴頭。
