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- CH3和N2OCH4 and N2O emissions
- CH4和CO2重整CH4 and CO2 reforming reaction
- CH4和N2OCH4 and N2O
- 用CH4和N,为载气的SiCl4作原料,用H2为稀释气,在两种气体混合比和三种温度下化学气相沉积SiC涂层。CH4 and SiCl4 are used as raw material,N,as carrying gas for SiCl4 and H2 as dilution gas. CVD SiC coating is prepared with two kinds of ratio and three kinds of temperature.
- CH4和C2H4CH4 and C2 H6
- CH4和CO2排放CH4 and CO2 emission
- (道德方面)促进,提高,社会进步提高社会,道德和智力标准的努力或运动An effort or a movement to improve social, moral, or intellectual standards.
- 全面实施以德育为核心、以创新精神和实践能力为重点的素质教育Carry on the quality education centering on moral education and emphasizing creativity and practice
- 让温馨的祝愿、幸福的思念和友好的祝福,在圣诞佳节来到你身边,伴你左右。May the warmest wishes, happy thoughts and friendly greetings come at Christmas and stay with you all the year through.
- 本文采用电子回旋共振微波等离子体化学气相沉积方法(ECR-CVD),以CH4和H2为气源、Fe3O4纳米粒子为催化剂,未加电场情况下,在多孔硅基底上制备出大面积阵列碳纳米管。The large area well-aligned carbon nanotube (CNT) arrays were synthesized on porous silicon by electron cyclotron resonance chemical vapor deposition (ECR-CVD) with CH4 and H2 as the source gases, Fe3O4 nanoparticle as the catalyst and without applying electrical field.
- 多读和多说英语,英语能力就会培养起来。English skills will accrue to you from speaking and reading a lot.
- 我们必须安排一个合适的时间和地点开会。We must arrange a convenient time and place for the meeting.
- N2Onitrous oxide
- 介绍了经过改装并配有火焰离子检测器 (FID)和电子捕获检测器 (ECD) ,能同步分析稻田CO2 、CH4和N2 O排放通量的气相色谱仪Agilent 4 890D的基本原理、主要配置及性能。The system for measuring CO 2,CH 4 and N 2O emissions consists of static sampling chambers,a modified Gas Chromatography(GC/Agilent 4890D)and an Agilent Chemstation. The modified GC with two detectors of FID and ECD was used to simultaneously detect the concentrations of CO 2,CH 4 and N 2O. Working principle,configuration and characteristic of the modified GC were presented.
- [谚]只有傻瓜和骗子才同别人打赌。None but fools and knaves lay wagers.
- N2O排放N2O emission
- 以CF4,CH4和N2为源气体,采用射频等离子体增强化学气相沉积法,在不同射频功率下制备了含氮氟化类金刚石薄膜样品.Nitrogen doped fluorinated diamond-like carbon(FN-DLC)thin films is deposited using radio frequency plasma enhanced chemical vapor deposition under different radio-frequency power with CF_4,CH_4 and N_2 as source gases.
- N2O通量N2O flux
- 大气CH4atmospheric CH4
- 他们的语言能力和语言学知识必须得到提高。And their language and linguistic competence should be improved.