折差，其实相当于今日的邮差，略有不同。 古时称专为地方大员送奏折到京城的邮差为折弁，折差即折弁。他们在办公差的时候，顺便为在京城做官的人传递家信。这种方式既稳妥又快，为清时京官儿普遍采用。
示差折光检测器 RID ; differential refractive index detector ; refractive index detector
外币资本折算差额 Foreign currency capital ; Foreign currency translation difference ; exchange differences on foreign currency capital
折射误差 refractive error ; error of refraction ; refraction error west bank
折射率差 refractivity ; refringence ; refractivities ; Refractive index difference
示差折光率检测器 [分化] differential refractive index detector ; refractive index detector ; RID
外币报表折算差额 Translation reserve ; Accumulated other comprehensive income ; Converted difference in Foreign Currency Statements ; Difference on translation of foreign currency financial statements
水平折光差 horizontalrefractionerror ; [天] horizontal refraction error
垂直折光误差 vertical refraction error
差示折光计 differential refractometer
折射差数 differential shrinkage ; differential refraction
我把这封用散文写的情诗折了起来，差约瑟夫送去，他把信交给了玛格丽特本人，她回答说她过一会儿就写回信。
I folded this kind of madrigal in prose and sent Joseph with it. He handed it to Marguerite herself, and she told him that she would reply later.
食物可增强某些溶解性差的药物(如灰黄霉素)的吸收，减少胃内降解药物(如青霉素g)的吸收，食物以裁缝折吸收或无影响，或影响甚少。
Food may enhance the extent of absorption for poorly soluble drugs (eg, griseofulvin), reduce it for drugs degraded in the stomach (eg, penicillin g), or have little or no effect.
我把这封用散文写的情诗折了起来，差约瑟夫送去，他把信交给了玛格丽特本人，她回答说她过一会儿就写回信。
I folded this kind of madrigal in prose and sent joseph with it . he handed it to marguerite herself , and she told him that she would reply later.
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