valve 名词复数:valves 过去式:valved 过去分词:valved 现在进行时:valving 词形变化: 形容词: valveless | 动词过去式: valved | 动词过去分词: valved | 动词现在分词: valving | 动词第三人称单数: valves | 词义辨析: 同义参见: tap2 cock outlet