发动机润滑剂技术规格
engine lubricant specification
燃气轮机润滑剂
gas turbine engine lubricant
4524合成冷冻机油
synthetic refrigeration oil 4524
氨冷冻机
ammonia refrigerator
ammonia refrigerating machine
ammonia machine
氨气吸收冷冻机
ammonia absorption refrigerating machine
氨气压缩冷冻机
ammonia compression refrigerator
氨吸收冷冻机
ammonia absorption refrigerator
棒冰冷冻机
bar machine ice bar freezer
闭合循环冷冻机
closed cycle refrigerator