알티

RT : Radiographic Test

암면

Rock Wool

암면보온재

Rock Wool Heat Insulating Material

암모니아압축냉각기

Ammonia Compression Refrigerating Machine

암적열

Dull-red Heat, Dark-red Heat

암초

①Reef, ②Sunken Rock

압괴강도

Crushing Strength

압괴시험

Crushing Test

압력계

Pressure Gauge

압력로그

Pressure Log