rè lí zǐ guǎn
thermionic tube
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in the end,
in the evening,
in the event of,
in the event that,
in the face of,
in the final analysis,
in the first place,
in the flesh,
in the form of,
in the future,
相似单词
热辣辣,
热浪,
热离子,
热离子的,
热离子电流,
热离子管,
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热力学,
热力学的,