海词手机词典

In this paper, we measured the thermal resistance of multi hole brick, designed external insulation wall and calculated the thermal resistance and the thickness of insulation mortar, which can save energy by 50% in Lianyungang.

播放读音 播放读音

以上内容独家创作,受著作权保护,侵权必究

海词词典,十七年品牌