“balance of trade”的概念、定义、翻译、参考文献-科学参考

单词	balance of trade
释义	balance of trade Encyclopedia 理学【对外贸易及投资】释 balance of trade进出口贸易差额一国在一定时期内出口总额与进口总额之间的差值，是货物进出口贸易差额和服务进出口贸易差额的合计。
随便看	radiation resistance radiation resistant glass radiation-resistant material radiation resistant polymer materials radiation resolution radiation ripening radiation risk radiation safety radiation safety license radiation safety management radiation safety management system radiation scattering radiation self decomposition radiation sensitivity radiation sensitization radiation sensitizer radiation sensitizing radiation sensitizing; radiosensitization radiation sensor radiation shape factor radiation shield radiation shielding radiation shielding concrete block radiation shielding glass radiation shielding material

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