space bar

英[ˈspeɪs bɑː(r)]

美[ˈspeɪs bɑːr]

n.
(计算机或打字机的)空格键

例句

I also had a frustrating time trying to compose a document inside Google Docs, when the Edge browser occasionally failed to detect when I was hitting the space bar; 

还有一次在Google Docs里写文档，害我折腾了很久，因为Edge偶尔会无法识别到我敲出的空格；

Development of System of Stability Analysis of Space Bar Structures 

空间杆系结构稳定性分析系统开发

Key control running around, the space bar calls flip-yun. 

左右键控制奔跑，空格键召唤筋斗云。