self-extinguishing u aturated polyester resin self-extinguishing unsaturated polyester resin
Related Translations:
熄: 动词(熄灭) extinguish; put out 短语和例子熄灯 put out the light; turn [switch] off the light; 就寝前熄掉炉火 extinguish [put out] the fire before one retires; 火熄了。 the fire has gone out
