程伟 2021-01-26 07:20 2015年9月15日各地长石价格(钾长石、钠长石)产品规格产地价格(元/吨)备注长石粉SiO2 含量65, K2O含量>8% ,熔点:1350-1450(℃)河北灵寿190-210出厂价长石粉SiO2 含量65,Na2O 含量
笑你戴德绿帽子 2022-04-02 10:56 月光石由两种长石混合组成。其中,冰长石和钠长石混合组成最常见。质量好的月光石呈半透明状,有似波浪漂游的蓝光。较差的呈半浑浊状。更低档的只有晕彩没有蓝光。月光石属于
Handling repeated elements in previous quicksorts I have found a way to handle repeated elements more efficiently in quicksort and would like to know if anyone has seen this done before.