Then, lubricate the stem and slide top of the elastomeric seat over the top (long end) of stem and push down over the O-rings.是什么意思_Then, lubricate the stem and slide top of the elastomeric seat over the top (long end) of stem and push down over the O-rings.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句