求翻译：我们将废旧料粉取代水泥混凝土中部分砂，以废旧料粉占砂的比例为主要变量，通过实验探索最佳的废旧料掺量；是什么意思？

We will scrap material powder to replace some sand in the cement concrete waste material powder accounted for the proportion of sand as the main variable experiments to explore the best dosage of waste material;

We will discard old anticipate the sand of cent in central part that the powder replaces the cement concrete, with discard old anticipate the comparison that the powder has the sand for mainly change the quantity, pass the experiment quest to the bestly discard old anticipate the amount of 掺 ;

We worn out material powder substitution cement concrete in partial granulated substance, occupies the granulated substance take the worn out material powder the proportion as the main variable, explores the best worn out material through the experiment to mix the quantity;

We will replace some sand in cement concrete waste material powder, powder a proportion of sand as the main variable of waste material, through experiment and explore the best of waste material;

正在翻译，请等待...