seco - shap
- shadow casting
- shadow electron image
- shadow electron micrograph
- shadow microscopy
- shadow photograph
- shadow X-ray image
- shadow zone
- shadow-cast replica
- shadowgraph
- shadowgraphic electron microscope observation
- shadowgraphic electron microscopy
- shadowing
- shaft
- shaft bearing
- shaft center
- shaft coker
- shaft crucible furnace
- shaft effervescive
- shaft efficiency
- shaft hammer