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Electroless Ni-Co-Fe-P alloys were deposited from a soft alkaline bath, containing boric acid as a buffer agent and sodium citrate as a complexing agent. The effect of the bath pH value on the coating structure was investigated by energy-dispersive X-ray spectral analysis, scanning electron microscope and X-ray diffractrometry.

摘 要：采用H3BO3为缓冲剂、柠檬酸钠为络合剂，在弱碱性体系中化学沉积Ni-Co-Fe-P合金，运用能谱分析仪、扫描电镜和X射线衍射仪研究镀液pH值对合金结构的影响。

A big boost came from Berkshire's investment in Chinese battery and car maker BYD Co.

伯克希尔对中国电池和汽车生产商比亚迪BYD Co。

In September, Mr. Cai advised Chinese battery maker BYD Co.

去年9月，中国电池生产商比亚迪股份有限公司作价2.3亿美元向巴菲特伯克希尔哈撒韦公司旗下的MidAmerican Energy Holdings Co。

In this paper, the brush electro-plating Co-W coating and its strengthening on the die and mould were studied.

本文研究了电刷镀Co-W合金镀层的制备方法、性能及在模具表面强化方面的应用。

The additive of Cu made Co well dispersed on catalyst surface, which suppress the by-reaction of methanation.

Cu组元的加入能够保证Co组元均匀地分散在催化剂的表面，有效地抑制了甲烷化反应的发生，使催化剂具有较好的合成醇性能。

The DIC δ〓C values of soil water are heavier than that of soil CO〓. And the DIC δ〓C values of spring water are heavier than that of soil water, because spring water might has penetrated to rock layer and mixed inorganic carbon of carbonate rock.

土壤水DIC的δ〓C值比土壤CO〓值偏重；泉水DIC的δ〓C值比土壤水DIC的δ〓C值偏重，原因是泉水可能已经渗入到基岩层之后再出露到地表，已经混入了部分基岩无机碳的成分。

And also a new theoretical model for combustion of carbon particles--the Moving Flame Frant Model proposed in the paper predicted very well some newly obtained experimental data in literature, which could not been explained by the traditional CO single-film model.

所建立的一种新的碳粒燃烧理论模型--移动火焰锋面模型很好地解释了传统CO—单膜理论所无法解释的一些最新的实验结果。

The invention is characterized in low check limit, high sensitivity, repeat application, and wide check air range, and the invention can be used to check various volatile harmful gas, more particularly check the discharge and leaked harmful gas as NO2, SO2, NO, CO, H2S and carbonyl chloride.

由于本发明传感器具有检测限低，灵敏度高，可重复使用，检测气体范围广等特点，故本发明可广泛用于检测人类生产生活环境中的各种挥发性有毒气体，特别适用于工业生产中NO 2 、SO 2 、NO、CO、H 2 S，及光气等有害气体排放合格性的检测及泄漏的检测。

Use gas analyser correctly in flue chamber at kiln back end to detect and analyse online the content of O2, CO, NO, etc in flue of back end, which can guide central control people to operate the whole system.

摘要正确使用窑尾气体分析仪进行窑尾烟气中O2，CO，NO等的含量的在线检测和分析，可正确指导中控人员合理操作系统。

The experiments were carried out chemically pure ZnO and reducing agent CO to study the reduction mechanism of the process. And this reduction is important in other metallurgical processes.

为探索其还原过程的规律，首先采用化学纯ZnO进行CO还原实验，研究还原过程的有关规律，这一还原反应也是其它冶金过程中常见的和十分重要的反应。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷