Read Edit View history Discussion 密封辐射源 mìfēngfúshèyuán sealed radiation source Origin Definitions Defs Strokes Stroke Words Sentences Sents 密封辐射源 密封輻射源 mìfēngfúshèyuán sealed radiation source radioactive material that is permanently sealed in a capsule or bonded in a solid form to prevent leakage
密封辐射源 密封輻射源 mìfēngfúshèyuán sealed radiation source radioactive material that is permanently sealed in a capsule or bonded in a solid form to prevent leakage