manufactured stone

基本解释

Crushed stone, manufactured lightweight stone, and seashells are often used in lieu of mural gravel.
破碎的石头、人工制造的轻质石头和海贝，经常用来代替墙上的砾石。
Second, the effect of the content of stone powders in the manufactured sand for pre-mixed mortar is analyzed.
其次，研究了机制砂中石粉含量对预拌砂浆性能影响的变化规律。
One of the most remarkable difference between manufactured sand and natural sand is stone dust whose particle size is less than 0.
机制砂中含有石粉是机制砂与天然砂之间最显著的区别之一，而石粉对机制砂混凝土性能影响也是机制砂混凝土研究的重点。