As a new type of filling materials, the aerated concrete has the features of low density, low strength, good absorption of water and great contraction.
加气混凝土作为一种新型的墙体填充材料，具有容重小、强度低、吸水率高，收缩性大等特性。
2
During atrial fibrillation, uncoordinated electrical activity leads to ineffective atrial contraction, reduced atrial filling time, and decreasing cardiac output.
在心房颤动，不协调电活动导致无效的心房收缩，减少心房充盈时间，减少心输出量。
3
As the spray coating line is in the non-linear distribution, the stress of a spray coating material due to thermal expansion and contraction can not deform the filling structure.