查询词典 replacement

The dechroming mechanism of organic acid from chrome shavings was studied from the following aspects,the depolymerization of complex compound,the replacement of H+ and the replacement of organic acid radical anion.

从络合物解聚、氢离子取代和有机酸根阴离子取代3个方面，探讨了有机酸的脱铬机理，认为氢离子的取代和有机酸阴离子的取代起主要作用。

Can be temporarily removed for replacement of the backflow preventer without the need for replacement of freeze protection services.

可以暂时性拆卸，在不需要更换防冻装置的情况下，便于更换防回流阀。

BACKGROUND: Prosthesis selection for total hip replacement is determined by geometrical matching with femoral medullary cavity of patients and the optimal biodynamics. It is of great significance for elevating outcomes of total hip replacement.

背景：人工髋关节置换术前选择假体时，不仅要考虑在几何学上达到与患者股骨髓腔的匹配，而且还要在生物力学性能上达到最优，这对提高全髋关节置换术后疗效，具有较现实的意义。

In recent years,research has involved percutaneous aortic valve replacement,percutaneous mitral valve reconstruction and even percutaneous pulmonary valve replacement after successful application of percutaneous mitral commissurotomy in clinical practice.

除经皮二尖瓣分离术外，近年来还涉及经皮主动脉瓣替换、经皮二尖瓣修复以及经皮肺动脉瓣替换等领域，并取得了一定的成果，文章对此作一概述。

Calculate the exponential decay curve of the Preventive replacement costs until they intersect the corrective replacement costs on a time basis.

计算预防更换成本的指数衰减曲线直到他们在时间基础上横断矫正更换成本。

The replacement process of dolomitization is a volume replacement for volume, not a mole for mole.

白云岩储层中的孔隙是各种溶蚀孔而非白云石化等摩尔交代的体积收缩孔。

This paper analyzes on the present situation of the damage and the causes of the erosion of the coke oven cross brace,and discusses on the merits and demerits of the integral replacement and the cut-off replacement of the cross brace and the procedures of the replacement.

分析了焦炉横拉条损坏的现状及横拉条腐蚀的原因，论述了横拉条整体更换和截断法更换的优缺点及更换步骤。

After extended operation, if leakage should occur at the top bearing or across the valve disk of either the Model-B or Model-C valve, this is an indication of wear to the elastomeric seat and/or O-ring seals, requiring their replacement. In most cases, valve replacement will be found less expensive than parts replacement.

在进行操作后，如果泄露出现在型号B或型号C阀门的顶部轴承或阀门阀瓣上，则表明弹性材料阀座和/或O形环密封出现磨损，这时就需要进行更换。

Seamless replacement, replacement Beijing - Beijing wire replacement center Shui Road America

无痕补发，北京补发-北京瑞路美丝补发中心

Reporter has learned that the Center and the Bank jointly launched the replacement of individual housing provident fund loan portfolio refers to the application for individual housing loans of the borrower, by the trustee bank to use bank funds to the borrower issuing bank commercial individual housing loans, by banks on behalf of the borrower to Kunming housing provident fund management center to apply for individual housing provident fund loans, agreed to by the management center for approval, the provident fund loans with bank loans Replacement "first trustee bank loans, after the replacement loan fund portfolio" of loans.

记者了解到，该中心和世界银行共同发起了更换个人住房公积金贷款业务是指在申请个人住房贷款的借款人，由受托人银行使用银行资金向借款人发放的商业银行个人住房贷款，由银行代借款人到昆明住房公积金管理中心申请个人住房公积金贷款，同意由管理中心批准，公积金贷款与银行贷款的替代品&第一受托人银行贷款，后更换贷款基金的投资组合&的贷款。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。