【生活】保护性覆盖物【生活】防护罩

罩子一个装饰性或保护性的罩或盖

外种皮：覆盖在种子外部的坚硬干燥的保护层，由胚珠的珠被发育形成。受精作用后珠被各层发生融合并加厚着色。

oil-resistant and waterproof protective clothing

protective coloration

protective shield

protective colloid

protective custody

protective overload circuit-breaking switch

protective casing of hypodermic syringes

thermo-protective sight glass