Cu furaldehyde-diamine Schiff base complex was synthesized with the yield of 63.

This invention discloses a method for preparing resorcinol by continuous hydrolysis ofm phenylene diamine.

一种间苯二胺连续化水解制备间苯二酚的方法,涉及一种有机化工原料间苯二酚的制备工艺.

HEDTA ( N-hydroxyethyl ethylene diamine triacetic acid )

N - 羟乙基乙二胺三醋酸 ( 有机螯合剂 )

Dialysis and ethylene diamine tetraacetic acid ( EDTA ) were used for improving electrospinnability of the PVA.

经透析或加入乙二胺四乙酸 ( EDTA ) 后,可纺性有了明显改善.

The jeweler scrutinized the diamond for flaws .

宝石商人仔细察看钻石有无瑕 庇

Now General Electric have gone one better than nature and made a diamond purer than the best quality natural diamonds.

现在通用电气公司已经制造出了巧夺天工的钻石，其纯度比最好的天然钻石还要高。

A diamond, all my eye! That's glass.

一块钻石, 瞎说! 那是一块玻璃.

It's the synthetic diamond.

这是人造钻石.

The diamond towns are gradually being reclaimed by the desert.

这些钻石城镇正逐渐重归沙漠。

There was a sudden sparkle as her diamond ring caught the light.

当她的钻石戒指遇到光时,有阵突然的闪耀.

The diamond must have got knocked out of my ring when I dropped it.

我把戒指掉在地上时,钻石一定是被摔掉了.

I had no sooner got off the ship than I was assailed by a man who wanted to sell me a diamond ring.

我刚刚下了船,一个想卖给我钻石戒指的人便向我发动了进攻.

It was a large diamond, but it had a flaw.

这是颗大钻石, 但它有一点瑕疵.

They stated the diamond to have been stolen.

他们宣称钻石已被偷了.

According to the character of drilling in exploration engineering, we have manufactured a pattern diamond bit.

根据勘探工程钻进的特点, 研制开发了一种新型的金刚石钻头.

The domestic market of diamond bit has very much development space.

国内金刚石钻头的市场极具有发展空间.

Diamond bit has advantages in structural characteristics and technology.

金刚石钻头在结构特点和技术方面具有优势.

It was a case of diamond cut diamond, each team was strong.

这是一场棋逢对手的对决, 每支队伍都很强.

It was diamond cut diamond when the two men met because they were so sure their own ideas were right.

这两人凑在一块,真是硬碰硬,因为他俩都确信自己的意见是正确的.

It's a case of diamond cut diamond with those two and both of them are afraid of going too far in their demands of each other.

这两个人势均力敌,双方都唯恐彼此提出过分的要求.

It was diamond cut diamond when the two teams met.

那两队一交锋真是棋逢对手,互不相让.