| 单词 | sphere gap | 
| 释义 | > as lemmassphere gap   sphere gap  n. a form of spark gap with two spherical electrodes, used esp. in devices for measuring high voltages. ΘΚΠ the world > matter > physics > electromagnetic radiation > electricity > discharge of electricity > 			[noun]		 > point of discharge > gap spark-gap1889 sphere gap1913 needle gap1916 the world > matter > physics > electromagnetic radiation > electricity > voltage > 			[noun]		 > higher than usual voltage > used in measuring sphere gap1913 1913    Trans. Amer. Inst. Electr. Engineers 32 739  				The sphere gap has been suggested as a standard instrument to be used in the measurement of high voltage. 1962    Newnes Conc. Encycl. Electr. Engin. 767/2  				The measurement and recording of testing voltages requires either a voltage divider..or a sphere gap..capable of measuring the peak voltage. < as lemmas | 
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