manufactured stone

基本解释

Crushed stone, manufactured lightweight stone, and seashells are often used in lieu of mural gravel.
破碎的石頭、人工制造的輕質石頭和海貝，經常用來代替牆上的礫石。
Second, the effect of the content of stone powders in the manufactured sand for pre-mixed mortar is analyzed.
其次，研究了機制砂中石粉含量對預拌砂漿性能影響的變化槼律。
One of the most remarkable difference between manufactured sand and natural sand is stone dust whose particle size is less than 0.
機制砂中含有石粉是機制砂與天然砂之間最顯著的區別之一，而石粉對機制砂混凝土性能影響也是機制砂混凝土研究的重點。