rectification

• 指纠正错误、修正偏差或整顿事物的行为或过程；也指化学中的精馏提纯、电学中的交流变直流，以及数学中求曲线长度的过程。

A noun referring to the act or process of correcting, refining, or setting something right, including chemical purification by distillation, conversion of alternating current to direct current, correction of errors, or mathematical determination of a curve's length.

1. Chemical purificationC1formalscientific

   The process of refining or purifying a substance, especially a liquid, through repeated distillation.

   精馏

   • The rectification of ethanol is essential for producing high-purity alcohol.
   • In the lab, rectification is used to separate different components of a mixture.
   • The rectification column improved the purity of the chemical compound.

   同义词distillationfractionationpurificationrefining

   反义词adulterationcontaminationpollution

2. Electrical conversionC1formaltechnical

   The conversion of alternating current (AC) into direct current (DC).

   整流

   • Rectification is a key process in power supply units.
   • The circuit performs rectification to provide stable DC voltage.
   • Modern chargers use rectification to convert household AC to battery DC.

3. Correction or improvementB2formal

   The act of correcting a mistake or making something right.

   纠正

   • The rectification of errors in the report took several hours.
   • He offered a rectification for the misunderstanding.
   • The company issued a rectification of the faulty data.

   同义词adjustmentamendmentcorrectionfixingimprovementredressremediationremedyrepairrevision

   反义词corruptiondamageharmimpairmentworsening

4. Mathematical curve lengthC2formalscientific

   The determination of the length of a curve by finding a straight line equal in length to it.

   曲线求长法

   • Rectification of a curve is a fundamental problem in calculus.
   • The mathematician worked on the rectification of the parabola.
   • Rectification allows us to measure the length of complex curves.