短語(yǔ)詞組短語(yǔ)Sealed or maintenance -free batteries 密封或維修using maintenance -free lead acid batteries 免維護(hù)鉛酸電池Maintenance -free Sealed Wet cell batteries 免保養(yǎng)密封式蓄電池Lead -acid Maintenance Free Batteries 鉛酸免維護(hù)蓄電池 返回 maintenance free battery