Warning: file_put_contents(): Only 0 of 4998 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/69228.com/index.php on line 55 亚洲熟女视频,日韩一区二区成人不卡视频
1. N a white poisonous crystalline solid, used in the manufacture of organic compounds and in the preparation of beet sugar. Formula: Ba(OH)2 氫氧化鋇 (Also called baryta)