查询词典 carbon

This paper analyzed the carbon isotopic ratios of tw o cryptoMeria, collecting froM West TianMu Mountain, Zhejiang, and studied th e t ree-ring carbon isotopic ratios evidence, for the atMospheric CO2 concentrati on change after Industrial Revolution.

植物在同化大气CO2过程中产生碳同位素分馏，因此，树轮中稳定碳同位素比值（1 3C/12C）不仅是重建古气候的工具，也是过去大气CO2浓度变化的敏感指示器。

Among these products.high carbon steel and welding wire can substitute imported products.low carbon wire rod has horour to win"golden cup"prize for product quality in ministry of Metallurgy industry and its quality in Ministry of metallurgy industry and its quality reaches International advanced level.

其中硬线、焊线可替代进口，低碳钢高线获冶金部产品实物质量"金杯奖"，达到国际先进水平。

Based on the previous researches, the Mirror-Confinement-type Electron Cyclotron Resonance plasma sputtering technique was employed to prepare the carbon films and the friction and wear properties of the carbon films were also examined in this article.

在本课题组已有研究基础之上，本文采用封闭式电子回旋共振等离子体溅射方法进行了碳膜的制备，利用球盘型摩擦磨损试验机研究了其摩擦磨损性能。

Abundant instances and experimentations on synthetic dawsonite indicate that carbonic acid or excess carbon dioxide is necessary for generating dawsonite. Therefore, occurrence of dawsonite is always associated with carbon dioxide gas reservoir.

大量的实例及人工合成片钠铝石实验表明，片钠铝石的形成需要碳酸溶液或过量的CO2气，片钠铝石的分布往往与CO2天然气藏相伴生。

However, dawsonite can be acted as trace mineral suggesting migration or accumulation of fluids with abundant carbon dioxide to whatever origin it belongs. In geological background, occurrence or enrichment of dawsonite indicates that migration or accumulation of carbon dioxide with large scale has happened.

然而，不论源于有机成因CO2气还是无机成因CO2气，片钠铝石均可作为富CO2流体运移或聚集的"示踪矿物"，地质过程中片钠铝石的出现或富集表明该区曾存在大量CO2运移或聚集。

With the active carbon powder as a decolorizer,the fish protein hydrolysate is decolored in different conditions (the used quality of active carbon,pH,temperature and time ).

以粉末状活性炭为脱色剂，对鲢鱼蛋白水解液在不同条件下(活性炭用量、pH、温度和时间)进行脱色比较。

Carbon fixed by photosynthesis can be allocated below ground and supplied as decomposable carbon to the soil/sediment thro...

维管植物在甲烷排放中的作用可以部分解释自然湿地甲烷在排放的时间和空间尺度上的差异。

Carbon steel bright heat treatment are mainly free-cutting steel and other low-carbon steel bright annealing, as well as bright demagnetization.

碳钢的光亮热处理主要有易切削钢等低碳钢的光亮退火处理以及光亮退磁。

The storage of particle detritus carbon was 2 times higher than that of total planktonic carbon.

POC库中，腐质颗粒碳为总浮游生物碳的2倍。

Nylon is an alternating copolymer with 2 monomers, a 6 carbon diacid and a 6 carbon diamine.

尼龙是交替共聚物与2单体， 6碳二酸和六碳二胺。

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。