a selective flotation process的用法和样例：
- Using sequential selective flotation process and adding dextrin as main depressant obtain good separation result.
- Experimental results showed that applying selective flotation process and optimum reagent condition can efficiently separate the lead-zinc minerals and obtain lead concentrate of 63.
- A select group were invited to the wedding reception.
- A select group of people were invited to the first performance.
- Antibiotics produce a selective change in flora.