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spontaneous light
 spontaneous light
tech. 自发光
| emitter
 emitter
geophys. 发射极
met. 发射体; 辐射源; 发射器; 发送机
semicond. 发射区
water.res. 滴头

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spontaneous light
tech. 自发光
spontaneous light emitter
: 2 phrases in 1 subject
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