| 矽 |
xī měi céng | sima (geology) / silicon and magnesium layer in earth's crust |
| 矽 |
xī | (Tw) silicon (chemistry) / Taiwan pr. [xi4] |
| 镁 |
měi | magnesium (chemistry) |
| 层 |
céng | to pile on top of one another / layer; stratum / floor (of a building); story / (math.) sheaf / classifier for layers |