混凝土

In a sentence

• 施工队正在浇灌新的混凝土路面。

  The construction crew is pouring a new concrete pavement.

  Here, '混凝土' is used to refer to the material 'concrete' as used in construction.

• 这种混凝土具有较高的耐久性和抗压强度。

  This type of concrete has high durability and compressive strength.

  In this sentence, '混凝土' emphasizes its properties as a building material, discussing its characteristics.

• 为了制作坚固的建筑结构，必须选用优质的混凝土。

  To create sturdy architectural structures, high-quality concrete must be chosen.

  '混凝土' here is referred to in the context of its application in construction, stressing the importance of quality.