watch-glass

英 ['wɒtʃɡl'ɑːs] 美 ['wɒtʃɡl'ɑːs]

• n. 表玻璃

英英释义

名词 watch glass:

1. laboratory glassware; a shallow glass dish used as an evaporating surface or to cover a beaker

2. a protective cover that protects the face of a watch