For millennia, artists used tempera paint consisting of ground pigment in egg yolk, which created vivid but opaque colors.

数千年来，艺术家用蛋彩画法，以手磨颜料粉混入蛋黄，创造出鲜明带朦胧的色彩。

Lead white was the only practical choice for white oil or tempera paint until the 19th century.

直到 19 世纪，铅白一直是白油或蛋彩画涂料的唯一实用选择。