This discolouration is completely harmless.这种变色是完全无害的.Dual - action toothpaste with Xylitol and baking soda to remove stains and surface discolouration from teeth.这种双重作用的牙膏,含有木糖醇和小苏打,能清除牙齿表层的污垢和污色.Discolouration of silve...
Designed side frames to increase air flow and prevent fogging.侧架设计,以增加空气流通,防止起雾.In upholstery application especially in automobiles and aircraft, low fogging is required.低雾化性是生产家具革,特别是汽车、飞机等座垫用革的特殊要求.Noncorrosive, non fo...