Its fixed electrode is concaveglass surface layer is made of gold.
它的固定电极是在凹曲的玻璃表面上镀金属层而制成。
2
At the core of Wright's system was a standardized 4x12x24-inch concrete or glass block with concave edges.
Wright系统的核是一个标准化的4x12 x 24英寸的带凹面的混凝土或玻璃砖块。
3
A concrete roof with concave sides sits atop scooped glass and wood walls at this house in Portugal, which is captured in a film starring a child on a red tricycle.