英语词汇black and white positive film怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	black and white positive film
释义	black and white positive film 简明释义黑白正片网络释义 1 ?黑白正片 ... 正向 [电学] forward direction◇正向传导 forward conduction 黑白正片 black and white positive film 明白正圆 vollmond ... 短语 1 black and white dup-positive film 黑白反正片 2 Black-and-white dupe positive film 黑白翻正片双语例句 1 The magnified black white positive separation plates of the negative color film were made with an ordinary enlarger and the filters of red, green and blue. 其彩色负片分别用红、绿、蓝滤色镜及普通放大机分色放大，制成黑白正版。
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