查询词典 methane

Calculated results indicated that methane-air mixed gases with an air mixed ratio less than 10% doesn't ionize, and can protect pins effectively.

结果表明，常态下空气含量C≤10%的甲烷－空气混合气体具有电探针保护能力。

As shown by the result, the biomass and astaxanthin content of oceanic red yeast was reduced due to the presence of β-ionone which inhibited the synthesis of carotenoids. The lethality rate of oceanic red yeast would attained 92.3% if 370 mg/L of the β-ionone concentration was contained in the plate medium. The oceanic red yeast mutated by ethyl methane sulfonate was cultured on plate medium containing 370 mg/L of the β-ionone. 200 mutants were randomly screened, positive mutants with increased the biomass, astaxanthin volumetric yield and astaxanthin specific yield accounted for 18% of the total strain, the mutants with higher biomass, astaxanthin volumetric yield and astaxanthin specific yield higher occupied 22.5%, 45% and 46%, respectively.

实验结果表明，在β-紫罗兰酮存在的情况下，由于类胡萝卜素合成受到抑制，海洋红酵母的生物量和虾青素合成量都减少；当平板培养基中β-紫罗兰酮浓度达到370 mg/L时，海洋红酵母的致死率为92.3%；在这种平板培养基上涂布经甲基磺酸乙酯诱变的海洋红酵母，随机筛选200个菌落，结果表明生物量、虾青素体积产率和细胞产率均有所提高的正突变株占18%，生物量、虾青素体积产率和细胞产率的单项指标有所提高的正突变株分别占22.5%、45%和46%。

That's because solar ultraviolet light irreversibly breaks down methane in Titan's mostly nitrogen atmosphere.

这是因为太阳紫外线分解了泰坦以氮为主大气中的甲烷。

There is more methane,ethane, isobutane and isopentane in shaly limestone than in marlite.

泥灰岩比纯灰岩所产气体中含有更多的甲烷、乙烷、异丁烷和异戊烷。

There are different characteristics of the hydrogen isotope through different ways to form bio-methane.

不同形成途径的生物甲烷具有不同的氢同位素特征。

One method to test whether life produced this methane is by measuring isotope ratios.

一种检测甲烷是否是由生命制造的方法是同位素比测试。

The Jovian planets are all large and have low mean densities, indicating they are composed of lightweight gases such as hydrogen and helium, as well as frozen compounds such as ammonia and methane.

木星类行星都有体积大密度小的特征，这表明他们成分构成不仅包括冻结复合物，如氨和甲烷，还包括重量轻的气体，如氢和氦。

Based on the above work, a formula of the laminar burning velocity of methane-air has been developed in this dissertation.

在此基础上，总结出了计算甲烷一空气预混层流燃烧速率的公式。

This lamppost composts trash and uses the methane byproduct as a fuel to power the lamps.

这灯柱堆肥垃圾和使用甲烷作为燃料的副产品权力的灯。

Linear regression of the experimental data of methane adsorption above the critical temperature to this new equation based on the lattice theory was done.

运用一个基於Ono-Kondo晶格理论模型的新方程，描述了甲烷在狭缝状微孔内的超临界温度高压吸附。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。