refractory block

基本解释

The anterograde effective refractory period and Wenckebach block point were measured before and after ablation.
进行慢径路改良，观察手术前后房室结的前传有效不应期和文氏阻滞点的改变。
The non-porous refractory liner, - the nest block is a high strength Corundum – Spinel pre-cast and pre-fired shape.
非多孔耐火材料内衬，是一种高强度刚玉- 尖晶石预制和预焙烧的成型的。
The construction of the wall of anode roasting furnace with steel fiber reinforced refractory precast block instead of traditional small special shape brick is introduced in the paper.
预焙阳极焙烧炉炉墙采用钢纤维增强浇注料预制块替代传统的小块异型砖，在国内尚属首次。