Liaoning Xiuyan Nephrite Placer Deposit(XNPD)is a secondary deposit of primary nephrite ore.the quality of the jades are fine and smooth,and their lustre are comfortable.是什么意思_Liaoning Xiuyan Nephrite Placer Deposit(XNPD)is a secondary deposit of primary nephrite ore.the quality of the jades are fine and smooth,and their lustre are comfortable.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句