the air-free concrete is required for the construction of the high-rise building.
高层建筑的建造需要使用无气混凝土。
we need to ensure that the concrete mix is air-free to achieve the desired compressive strength.
我们需要确保混凝土混合物不含空气，以达到所需的抗压强度。
the air-free concrete is produced by carefully controlling the mixing process to eliminate air bubbles.
无气混凝土是通过仔细控制混合过程来消除气泡而生产的。
the use of air-free concrete has resulted in a stronger and more durable foundation for the bridge.
使用无气混凝土使得桥梁的基础更加坚固和耐久。
