无色

纯空气是无色无臭的。

Pure air is colourless and odourless .

CO2激光裂解气相色谱仪可以直接用于浅色或无色透明样品的分析。

CO2 laser pyrolysis gas chromatography can be directly applied in analysis of light-coloured or colourless transparent specimens .

室内污染分为两种：一种是我们能看得见或闻得着的，另一种是无色无味的。

Indoor pollution falls into two categories , that which we can see or smell , and pollution which is invisible and produces no odour .

本标准适用于无色光学玻璃相对研磨硬度的测试。

This standard applies to the test of colorless and optical glass relative to abrade hardness .

无色杆菌蛋白酶Ⅰ肽链N端作用的突变研究

The Mutation Studies on the N-Terminal Action of Achromobacter Protease ⅰ Peptide Chain

（HI）一种无色或黄色的碘化氢水溶液。

( HI ) a colorless or yellow aqueous solution of hydrogen iodide .

一种无色的腐蚀性气体：HCl。

A colorless corrosive gas : HCl .

在生物体系内，MB易被还原成无光动力活性的无色亚甲基蓝。

In biological systems , MB is easily reduced to the colorless methylene blue without photodynamic activity .

PTT环状低聚物的熔程为92.3～222.6℃，熔融后是无色、透明的低粘度液体。

The cyclic oligomers melt at 92.3 ~ 222.6 ℃, providing liquids of low viscosity .

由甲烷CNG大多，比空气轻，无嗅、无色。

CNG made up mostly of Methane , is lighter than air , odorless and colourless .

实验表明合成无色Ⅱa型宝石级金刚石合适的Ti（Cu）掺入量为1.8wt%。

Experiments show that the appropriate amount of Ti ( Cu ) is 1.8 wt % in the synthesis of the colorless type ⅱ a gem diamonds .

一种无色气体，在水溶液中形成氢碘酸。（HI）一种无色或黄色的碘化氢水溶液。

A colorless gas that yields hydroiodic acid in aqueous solution . ( HI ) a colorless or yellow aqueous solution of hydrogen iodide .

这所大学指出：借助传统的X射线技术只能显示无色的部分隐藏画的影像，并且只能显出“一块绿草地”后的模糊的人像。

Conventional X-ray techniques give a colorless , partial view of the hidden painting and only show vague contours of a person behind'Patch of Grass ' , the university said .

用孚尔根核染色反应处理DNA的变化：小孢子母细胞的核是鲜紫红色，细胞质无色；

The treatment with Feulgen reaction shows that the DNA of undergo the following change : The nuclei of microspore mother cells are of fresh purply red color and the protoplasms are colorless ;

因此，颗粒活性炭、超临界CO2流体萃取脱色工艺适合于不同层次的无色黄米蛋白的工业化生产。

In conclusion , activated carbon and supercritical carbon dioxide fluid extraction are suitable for producing different grades of color-free proteins from proso millet prolamin industrially .

“环丙烷：一种极易燃易爆的无色气体，CH，有时用作一种麻醉剂.”

" cyclopropane : a highly flammable , explosive , colorless gas , CH , sometimes used as an anesthetic . "

一种无色的、有甜味的气体，N2O，在牙病治疗和手术中用作一种柔和的麻醉剂。

A colorless , sweet-tasting gas , N2O , used as a mild anesthetic in dentistry and surgery .

一种新型无色DAR成色剂的合成与应用

Synthesis and Application of a Novel Colorless DAR Coupler

二甲醚（DME）在常温常压下是一种无色、无毒、对环境友好的化合物。

Dimethyl ether ( DME ) is a colorless , non-toxic and environment-friendly compound at normal temperature and pressure .

一种有毒无色易燃的液体（CS），用于制造人造丝、玻璃纸、四氯化碳及作为橡胶溶剂。

A toxic colorless flammable liquid ( CS2 ); used in the manufacture of rayon and cellophane and carbon tetrachloride and as a solvent for rubber .

由对N，N-二甲氨基苯甲醛、N，N-二甲基苯胺和间N，N-二甲氨基苯甲酸与尿素在酸催化下反应制得无色结晶紫内酯（LCVL）。

Leuco crystal violet lactone ( LCVL ) was prepared by the reaction of p-dimethyl-aminobenzaldehyde ? N , N-dimethylaniline and m-dimethylamino-benzoic acid with urea catalyzed by acid .

它的粗提液经聚丙烯酰胺凝胶电泳及NBT的酶活性染色，在蓝色背景上有两条无色透明的同工酶谱带。

The crude extract presents two bands using polyacrylamide gel electrophoresis and NBT enzymatic activity stain .

这种辐射变色膜为无色透明固体薄膜，经60Coγ射线辐照后，其颜色变为蓝色。

It is a clear transparent solid film , but it becomes blue after irradiated by γ - ray .

SF6是一种无色、无嗅、无毒、不易燃的惰性气体，具有良好的绝缘性、灭弧性和散热性。

SF6 is a colorless , odorless , nontoxic , and nonflammable inert gas with excellent electric insulating and arc-quenching properties .

从临床初诊为仔猪副伤寒的病猪采集粪便，接种亚硒酸盐亮绿增菌液增菌后，划线于SS琼脂培养基，挑无色透明菌落纯化。

The feces was collected from diseased piglets clinically diagnosed as paratyphoid , inoculated on Sodium Selenite brilliant green SS medium , then streaked on SS medium .

一种无色晶状钠盐（NaF），用于氟化水和防止牙齿腐烂。

A colorless crystalline salt of sodium ( NaF ) used in fluoridation of water and to prevent tooth decay .

本文报道了氢化物无色散原子荧光法测定水中痕量Sb（Ⅲ）和Sb（Ⅴ），方法简便、快速、灵敏。

A simple , rapid and sensitive hydride generation nondispersive atomic fluorescence spectrometry method has been developed for the determination of trace Sb (ⅲ) and Sb (ⅴ) in water .

在一个RGB值中，任何给定的通道都可以包含一个从0（无色）到255（完整颜色）的值。

In an RGB value , any given channel can contain a value anywhere from 0 ( no color ) to 255 ( full color ) .

特性：具有最好的耐热性，耐气候性PMMA是无色透明，透光率是塑料中最好的，比玻璃高，光的透过范围大；

Characteristics : the best heat resistance , weather resistance PMMA is colorless and transparent , the transmittance is the best plastic than glass high , the light through the range ;

离子通量的变化大体上是无色散的。离子主要受南向行星际磁场（IMF）所引起的对流电场的驱动注入到环电流区域。

Ions are injected from the magnetotail to the ring current region in a dispersionless mode most probably by enhanced convective electric field that driven by steady southward interplanetary magnetic field ( IMF ) .