spirit level
柯林斯词典
1. N-COUNT A spirit level is a device for testing to see if a surface is level. It consists of a plastic, wood, or metal frame containing a glass tube of liquid with an air bubble in it. 水平儀[英國英語]
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1. N-COUNT A spirit level is a device for testing to see if a surface is level. It consists of a plastic, wood, or metal frame containing a glass tube of liquid with an air bubble in it. 水平儀[英國英語]