admixing amount of anthracite的用法和样例：
- He has a large amount of mail to answer every day.
- The carpet will stand any amount of wear.
- The amount of a claim on an insurer by an insured.
- The optimum ratio of reactive component to inertinite is determined by the determination of the microstrengths of crucible coke made from single coal with addition of differents amounts of anthracite.