Based on single machine check test,small screening test,combustible withdraw rate calculation and flotator complete index calculation,prove that the flotation result is very well.
In the family of the ducks, the lamellae are first used as teeth, then partly as teeth and partly as a sifting apparatus, and at last almost exclusively for this latter purpose.
Sometimes that character commands our respect, for its sieved residue is sound, and we do not hold it against a man that he goes in rags and cannot or will not work for a living.
The 'yellow ground' had to be smashed up with picks so that it could be coarsely sieved in large wire frames, and the resulting large pieces removed by buckets to be further sieved and scraped.