n.(名词)

1. 【物、原子能】放射性同位素

radiomete辐射仪, 放射量, 测定仪radion.收音机；无线电v.用无线电通讯radiometric calibration site辐射校正场radiographic technical films射线技术胶片radio-frequency power loss射频功率损失radio-navigation equipment无线电导航设备radio-broadcasting channel无线电广播通道radio waves from outer space来自外层空间的无线电波radio navigation transmitter无线电导航发射机radio-frequency holography射频全息照相术,射频全息术radio subsystem link control无线分系统链路控制radiolocation mobile station无线电测位行动电台

1. Thus, the chondrules should have made a much greater contribution to radioisotope heating than the refractory inclusions did.
   因此球粒提供的放射性同位素加热，应该比耐火包体多。
2. Absorption of exogenous calcium and sucrose and their deposit onto the cell walls in litchi pericarp were studied by using radioisotope tracer technique.
   摘要利用放射性同位素示踪技术研究荔枝果皮对外源钙和蔗糖的吸收及细胞壁构建规律。