您要查找的是不是：
- Master Positive (same as Interpositive): Timed internegative made from a negative original and from which a duplicate negative is made. 翻正片（同中间正片）：用原底片复制的已调光拷贝，用来印制翻底片。
- Dupe, Dupe Negative: A duplicate negative made from a master positive by printing and development or from an original negative by printing followed by reversal development. 翻底片：一种复制的负片,由翻正片通过印片和冲洗得到，或由原底片通过印片和反转冲洗之后得到。
- Picture can also duplicate without negative. 现在相片没有底片也可以复制.
- He gave me a duplicate key of his house. 他给了我另配了一套他房子的钥匙。
- Enclosed is our program invoice in duplicate. 随函附上我方估价单一式两份。
- Usually we ask for a draft in duplicate. 我们通常要求草图一式两份。
- The answer to my request was in the negative. 对我的请求的答复是否定的。
- duplicating positive and duplicating negative 翻正片 翻底片
- His answer to my request was a negative. 我的请求遭到了他的拒绝。
- The tests for hepatitis were negative. 肝炎检查结果是阴性。
- Duplicate data or information copied from one medium to another. 从一种介质向另一种介质拷贝的复制数据或信息。
- Their criticism was not negative. 他们的批评并不是负面的。
- In printing, the creation of duplicate plate by electrolysis. 在印刷技术中，用电解法生产的复制板的方法。
- Do a blow-up of this corner of the negative. (对某事的)详尽的报道。
- I have a negative opinion on the value of this idea. 我对这个主意持反对意见。
- duplicate negative 复制底片
- How many copies do you ask us to print off from the negative? ＂用那张底片，你要我们印几张像片？＂
- You'll just have to duplicate your performance. 你只需重演你的节目。
- A way of producing the negative of a number by obtaining its complement. 一种通过求一个数的补码来得到该数的负数的方法。
- The positive or negative character of a proposition. 命题的性质命题的肯定或否定的性质
