the production and discharge of something, especially gas or radiation
(尤指气体或辐射的)发出,散发,排放
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the effects of lead emission on health 铅排放对健康的影响
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[count noun]
cuts in carbon dioxide emissions .二氧化碳排放量的减少。
[count noun]an ejaculation of semen
射精,遗精。
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emissionn.发出;散发;排放;射精;遗精
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missionn.任务;使命;代表团;使馆;航天飞行;天职;传教团;外交使团;布道团;驻外机构
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permissionn.同意;准许;许可证
"late Middle English (in the sense emanation): from Latin