oils for lighting
... 照射极限:irradiation limit 照明用油:illuminating oil 照明用电动发电机组:lighting motor-generator set ...
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照明用油脂 Illuminating grease ; Grease ; grease for lighting
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人们过去用油灯照明,如今都用电了。
People used to light rooms with oil lamps in the past. Now they use electricity.
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