Use "placers" in a sentence

1. Concrete placers, concrete finishers and related workers

2. Laterite, and gold placers are the only exogenic deposits.

3. Only the names of the three top placers are known.

4. Radiographs are demonstrated as an auxiliary tool to studying placers.

5. Semiautomatic Capping systems include cap tighteners, chuck cappers, vertical plugger-placers and snap cappers

6. The team finished third behind champions Japan and second placers, Manchukuo and ahead of the Republic of China.

7. It occurs in association with native gold and magnetite in placers; with copper, heazlewoodite, pentlandite, violarite, chromite, and millerite in peridotites; with kamacite, allabogdanite, schreibersite and graphite in meteorites.