| 单词 | deep therapy |
| 释义 | > as lemmasdeep therapy deep therapy n. the treatment of disease by short-wave X-rays (see quots.). ΚΠ 1944 R. Phillips Super-voltage X-ray Therapy ii. 4 These descriptive terms—‘superficial’ therapy for voltages up to 130 kv., ‘deep’ therapy for the 200–400 kv. range, and ‘supervoltage’ therapy for 500 kv. upwards—have little to recommend them except brevity. 1967 New Scientist 29 June 760/1 Whereas the term ‘deep therapy’ formerly implied X-ray generators of several hundred kilovolts, it now implies accelerators of, effectively, several million volts. < as lemmas |
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