bell jar
柯林斯词典
1. N a bell-shaped glass cover used to protect flower arrangements or fragile ornaments or to cover apparatus in experiments, esp to prevent gases escaping 钟形玻璃罩
返回 bell jar
1. N a bell-shaped glass cover used to protect flower arrangements or fragile ornaments or to cover apparatus in experiments, esp to prevent gases escaping 钟形玻璃罩