您要查找的是不是：
- The hydroxyl ion has a negative charge. 氢氧根离子有一个负电荷。
- Let's purify air with a negative ion generator. 我们用负离子发生器净化一下空气吧。
- The answer to my request was in the negative. 对我的请求的答复是否定的。
- 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。
- Their criticism was not negative. 他们的批评并不是负面的。
- Do a blow-up of this corner of the negative. (对某事的)详尽的报道。
- A chemical compound containing aluminum as part of a negative ion. 铝酸盐一种化合物，铝作为负离子部分包含于其中
- Zwitterion An ion with both a positive and a negative charge. 两性离子：既带有正电荷又带有负电荷的离子。
- We sailed from Perth with a cargo of raw ion. 我们装着一船生铁从佩思启航。
- I have a negative opinion on the value of this idea. 我对这个主意持反对意见。
- 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？＂
- 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。
- Both of these particles can produce ion pairs. 这两种粒子都能产生离子对。
- The positive or negative character of a proposition. 命题的性质命题的肯定或否定的性质
- A negative ion is an atom which has gained one or more extra electrons. 获得一个或多个额外电子的原子称为负离子。
- Computers are now widespread ion China. 如今，计算机在中国被广泛应用。
- An electron with a negative charge, as contrasted with a positron. 电子带有负电荷，与正电荷相反的电子
- The crystals were cleaned by argon ion bombardment. 结晶体由氩离子轰击而净化。
- The seas, wind, and te ion were really high. 大海上风吼浪涌，我们的情绪也高度紧张。
