厄...那个guide的分析是:
2) Laing DDC 3.1 with Aftermarket Top :: USD $90-110 :: The Laing DDC 3.1 is weaker version of DDC 3.2 and slightly more reliable than DDC 3.2, and quieter than both the DCC 3.2 and D5. The DDC 3.1 has low power consumption and uses only 8 watts and with a top has pump...