例句與造句

1. The motivation of many of the research projects pursued under his guidance was to find innovative means of beneficiating several complex and / or low-grade Indian mineral deposits, such as monazite beach sand, zircon, molybdenite, diamond, phos琾horites, zinc ferrite, zinc tailings and residues, alumina-rich iron ore, pyrite, separation amongst calcium mineral systems, Kudremukh-iron ore tailing, deep sea manganese nodules, ferrotungsten deposits etc . Simultaneous studies were also carried out in his laboratory on several key unit operations in mineral processing, such as comminution, froth flotation, selective flocculation, leaching and bacterial leaching.
2. It's difficult to find selective flocculation in a sentence. 用selective flocculation造句挺難的