查询词典 radical expression

ConclusionThe determination method of scavenging radical by EPR technology was direct and quick. Water-solubility components from Rosmarinus officinalis L. has good capability of scauenging hydroxyl radical.

结论EPR技术测定迷迭香水溶性成分清除·OH自由基性能直接快速，迷迭香水溶性成分具有良好的清除自由基活性。

New reactions found in this program include: photoinduced regioselective free radical addition to aromatic imines;photoinduced Dielse-Alder reactions of aromatic imines for synthesis of tetrahydroquinoline derivatives;Photoinduced radical cation mediated selective ring opening reaction of epoxides;Formation of novel macrocyclic crown ethers by photoinduced reaction of diazonaphthaquinones;photoinduced selective desilylation of silyl ethers.

用这种方法成功的发现了下列在有机合成中有意义的新反应：(1)光诱导产生的自由基正离子诱导的自由基对芳香亚胺的区域选择性加成反应；(2)用光诱导的芳香亚胺的Diels-Alder反应合成四氢喹啉衍生物；(3)经光诱导产生的自由基正离子基诱导的环氧化物选择性开环反应；（4）重氮萘酮在环醚中经光诱导反应形成新奇的大环冠醚；（5）硅醚的光诱导选择性脱硅基反应。

The free radical scavenging activity of four Lamiaceaeplants growing in Turkey, Stachys byzantina, Salviaviridis, S. multicaulis and Eremostachys laciniata wasdetermined using a stable DPPH free radical.

一 具去除自由基活性的4种唇形科植物生长在土耳其，绵羊水苏、丹参贻贝、长梗黄花稔和沙穗是确定可使用於稳定DPPH游离基。

Piperidine oxoammonium salts oxidize aromatic amines and N, S-containing heterocycles to the corresponding radical cations, and the isotope effects in electron transfer reactions between thianthrene and N-methylphenothiazine radical cations and their respective neutral parent molecules have been reported for the first time.

啶氧铵盐氧化芳95胺和含氮、硫芳杂环为相应的自由基正离子，首次报道了及甲基吩自由基正离子与其中性母体之间电子转移的同位素效应。

Piperidine oxoammonium salts oxidize aromatic amines and N, S-containing heterocycles to the corresponding radical cations, and the isotope effects in electron transfer reactions between thianthrene and N-methylphenothiazine radical cations and their respective neutral parent molecules have been reported for the first time.

哌啶氧铵盐氧化芳香胺和含氮、硫芳杂环为相应的自由基正离子，首次报道了噻蒽及甲基吩噻嗪自由基正离子与其中性母体之间电子转移的同位素效应。

Radical abdominal trachelectomy can be successfully performed by any gynecologic oncologist who is trained in radical pelvic surgery.

根治性经腹宫颈切除术对于接受过基本盆腔手术的妇科肿瘤医生来说易如反掌

Free radical hurts biological large molecules, lets lipid peroxid- ize and damages membrane, the weakening of antiperoxidation system in vivo (vit E, SOD, GSH-PX) will increase the harmful effect of radical on cells.

自由基损伤生物大分子，使脂类过氧化，造成膜损伤；机体抗氧化体系(维生素E，超氧化物歧化酶，谷胱甘肽过氧化物酶等)作用的削弱会加重自由基的细胞毒作用。

The mutagen mechanism is presumed single factor dominant.(4)There was 85 percent transvertion in mutagen spectra, and they were all G:C→T:A transvertion. The maximal possibility of mutagen mechanism is analyzed as followed:ion beam implant → breakage cell surface and enter the interior → stimulate plentiful radical born → radical oxidize and damnify DNA → G becomes 8—oxoG → 8—oxoG pairing A → result in G:C→T:A transvertion(5)Production of transition was presumed that ion beam implantion damnified DNA, stimulate activity of MMR interveniented by methyl reducing.

诱发突变谱中碱基颠换比例是0.85，且是全部G：C→T：A颠换，推测低能离子束诱变鼠伤寒沙门氏菌得分子机制可能为：离子注入→通过破坏细胞表面进入内部→刺激产生大量自由基→自由基氧化损伤DNA→G变成8氧—7，8—二氢鸟嘌呤(8—oxoG)→8—oxoG与A配对→导致G：C→T：A颠换。

Every one of Obama's administration appointments is a hardcore radical lefty and all of Obama's mentors are hardcore radical socialist communist Marxist loonies.

奥巴马政府的每个成员都是死硬极左，而且奥巴马的所有导师都是死硬激进的社会主义共党分子、马克思列宁主义者。

To find out the safe distal distance from tumor in the radical operations of rectal cancer and to provide evidence for the radical operations of rectal cancer, the experiment study is about pathological change of 5cm Transitional Mucosae from distal resection margin of the rectal cancer in the molecular level.

为了探讨直肠癌根治术中癌肿远端切缘的安全距离，本实验研究直肠癌癌肿远端1～5cm处癌旁组织在分子水平上的病理变化。

Connectors are lines that can be anchored to particular places, called glue points , on the graphic object.

连接符，可固定在图形对象的特定的地方的线条。

Another way of putting it, too many agents have a say in each other's work, and bureaucratic rigor mortis sets in.

另一种表达是，太多的作用物在彼此的工作里都有话语权，官僚的僵尸开始抬头。