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| 强度减半厚度 (使辐射强度减半的吸收介质厚度) | |||
| 半厚度 | |||
| 半厚度 (电离层电子密度最大值所在高度以下的等效厚度); 强度减半厚度 (使辐射强度减半的吸收介质厚度) | |||
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| 半厚度 (把电离层电子密度最大值所在高度以下的电子密度分布看成抛物线分布而得的等效厚度) | |||
| 半值层; 半值厚度 | |||
| 半厚 | |||
| 半值厚度; 半吸收厚度 | |||
| English thesaurus | |||
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| The thickness of an absorbing medium that will depreciate the intensity of a radiation beam by one half | |||
| half thickness: 18 phrases in 10 subjects |
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