如何使用 "shellac" 造句

1. Orange shellac and other indian lacs for electrical insulation .: 电绝缘材料用橙色虫胶和其他印度紫胶。

2. The most common finishes are shellac , lacquer , varnish and oil .: 最常见的表面处理包括虫漆（生漆、漆片）、硝基漆、清漆和油脂。

3. When electrification began in earnest in the first years of the century , demand for shellac soon outstripped supply .: 当电气化在本世纪初真正开始发展时，紫胶很快就变得供不应求。