1. Usually, In-basket, Leadless Group Discussion, Role Playing and Management Game are used for the simulation technology of assessment center.

2. Leadless glaze, the surface is bright, and the corners are not sharp.

3. The invention relates the rare earth modified leadless X ray barrier plastic.

4. The performance of leadless and cadmiumless fluxing agent for overglaze colors was investigated through orthogonal experiments.

5. High density packaging can he achieved by using leadless ceramic chip carriers (LCCCs).

6. The performances of leadless and cadmiumless fluxing agentswere studied based on alkali - boron - silicon fluxing agent system.

7. The results will enable the leadless gasoline to be produced in series and then bring a remarkable profit for the refinery.

8. In the paper( ), the leadless POM composites were developed with powder of stannum instead of lead.

9. The leadless packaging structure reduces the packaging size of the semiconductor device and reduces the product cost.

10. The effect of alkaline metal oxides and fluorides on the performances of green leadless fluxing agents for overglaze colors were studied by means of orthogonal experiments.

11. It has passed the International General-Purpose "SGS" Testing Approval. It is especially fit for the leadless welding.