查询词典 CR

Now,three kinds of alloys were studied and applied:Cr-former alloy,Ni-based alloy and the ferritic steel.

目前研究和使用的合金有三种：Cr基合金、Ni基合金和铁素体不锈钢。

Trace quantities of metals will be present in both the elemental and compound form (As, Cd, Cr, Cu, Pb, Mn, Hg, Ni, Sn, Zn). Trace quantities of a number of compounds with potential health impacts may be emitted, with dioxins and furans of particular interest .

重金属既可以单体形式存在，又可以化合物形式存在(As， Cd， Cr， Cu， Pb， Mn， Hg， Ni， Sn， Zn)，有些微量成分对人有潜在伤害，尤其以二噁英和呋喃最为人关注。

In this thesis, industrially mature deposition technique was utilized to deposit titanium nitride film on Co-Cr alloy and additionally comprehensive comparisons between this deposition approach and conventionally gold-plating technique were conducted in several aspects to demonstrate the superior performance of these two surface modification methods.

本研究利用工业上成熟的镀膜技术在Co-Cr合金表面镀氮化钛(titanium nitride，TiN)薄膜，以提高其耐腐蚀性及生物相容性，并与口腔修复中广泛适用的镀金工艺进行对比研究。

The oxidation resistance of three kinds of Fe-Cr based heat-resisting steel at 1250℃ was analyzed and studied using XRD, SEM and EDS techniques.

采用X射线衍射、扫描电镜及能谱分析等方法对三种Fe-Cr基耐热钢在1250℃的抗氧化性能进行了分析和研究。

Since high carbon alloy steels is HRC 55~65 in hardness and 1.5%~2.5% in Carbon Equivalent, high-carbon-alloy-steel surfaced metals generally were selected in order to maintain high hardness and wear resistance of weld repaired layer, of which high-carbon Cr-Mo-W surfaced metal had been most widely used with 300~500℃ preheat or heat-treat after welding to improve its crack resistance.

由于高碳合金钢的碳当量高达1.5％～2.5％，硬度一般为HRC55～65，为了保证修复层的高硬度和耐磨性，焊接材料常选用高碳合金钢质堆焊金属，目前最普遍采用为高碳Cr－Mo－W系堆焊金属，但必须采用350～500℃高温预热焊和焊后热处理工艺措施以保证其具有一定的抗裂性。

Trees have adsorption, absorption of pollutants or impede the spread of pollutants, trees absorb SO2, nitrogen oxide, hydrogen nitrogen compounds, Cl, fluorine compounds and Hg, Cr, and other heavy metals.

树木具有吸附、吸收污染物或阻碍污染物扩散的作用，树木吸收SO2、氮氧化合物、氮氢化合物、Cl、氟化合物和Hg、Cr等重金属。

The minim Cd ions and Cr ions are kinds of injurants in drinking water, which is need removed for human.

饮用水中微量Cr和Cd重金属离子是需要脱除的一类有害物质。

In sputtered Ni/Al and Ni/Cr multilayers,X-ray diffractionindicatesan expansion of the Ni lattices along the growth direction, which results instress in the multilayers.

在溅射制备的一系列Ni/Al和Ni/Cr多层膜中，X-射线衍射表明Ni层晶格在沿其膜面发向上与体材料相比存在轻微的膨胀，这导致了在沿其膜面发向上存在张应力。

In this paper, a total of 56 relatively nonpoint source pollution sediment samples were collected from the tidal flats of the Jiuduansha shoal and the Chongming island of the Yangtze river estuary. The main properties i. e., grain size distribution, contents of DCB (dithionite citrate bicarbonate extracted iron Fe(subscript d, AAO extracted iron Fe(subscript o, total Fe, DCB extracted Mn Mn(subscript d, total Mn, organic matter, magnetic susceptibility of the samples, as well as the concentrations of Cu, Zn, Pb, Cr, Cd and Ni in the samples, were determined. Basing on the data, the relation of the sediment properties to heavy metal concentrations was evaluated with pearson's rank and partial rank correlation analysis.

采集长江口无明显点源污染的崇明东滩和九段沙潮滩56个沉积物样品，测定沉积物原样和粘粒中Cu，Zn，Pb，Cr，Cd和Ni的含量以及沉积物的主要性状（粒径分布、游离铁、活性铁、总铁、游离锰、总锰、有机碳和磁化率等），以相关分析和偏相关分析研究沉积物中重金属含量与沉积物主要性质之间的关系。

In chapter I, We study that the catalysis of Al~(3+) on the reduction of Cr~(6+) by citrate acid, tartaric acid, oxalate acid, butyric acid, laetrile acid and malic acid at different temperatures and pH.

本论文共分三部分：第一部分：在不同的温度和pH条件下，通过批式试验研究了Al~(3+)对柠檬酸、酒石酸、草酸、正丁酸、苦杏仁酸、苹果酸还原Cr~(6+)的催化作用。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。