英语词汇“positive cause”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	positive cause
释义	positive cause 基本例句实际原因 The actual cause of melasma is unknown, but it is known to be related to both hormonal levels and exposure to sunlight.黄褐斑的实际原因还不清楚，但它是已知的有关这两个激素和暴露于阳光下。
随便看	wirewound strainer wire-wound transformator wire-wound transformer wire-wound trimmer wirewound trimming potentiometer wire wound trimming potentiometer wire-wound trimming potentiometer wire-wound variable resistor wire wound vessel wire-wound vessel wirewound vessels wire-wove wire woven wirewrap wire wrap wire-wrap wire wrap assembly wire wrap board wire-wrap board wire-wrap boards wire wrap connection wire-wrap connection wire-wrap connector wire wraping wire wrap machine