Any of various small auks ( genus Aethia and related genera ) of northern Pacific coasts and waters.北部海域的蹼足潜水海鸟;海雀;角嘴海雀;海雀科鸟;海鸠;等.Any of several auks of the genus Cepphus, having black plumage with white markings.羚羊属的几种羚...
The coating is good in fireproofing, decoration.该涂料具有良好的防火性 、 装饰性.Get ready to the fireproofing of rooms and aisles.做好房间和走廊的防火工作.Its surface can be made with pigskin , cofam, aluminous alloy and fireproofing material.本品分...