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A flow injection spectrophotometry is proposed for simultaneous determination of iron ion andiron ion(Ⅲ based on o-phenanthroline spectrophotometry,using double zone injection and a reduction column packed with cadmium plated zinc power.

将流动注射技术引入邻菲罗啉分光光度法测定Fe2+分析体系，采用单阀双带镀镉锌片还原柱带隔离的阀体流路，建立了同时测定微量Fe2+和Fe3+的分析方法。

Instead of 5-2 to Andreev with a double minibreak, it was a replayed point, which Nalbandian won.

这一分必须重打，而原本Andreev是可以再次打破发球分以5-2领先的。

Our company besides produces the above standard throttling gear, but also produces the present domestic ordinary application each kind of special throttle, like wing anemography installment, ring-like throttle type flowmeter, double repeated passage hamlet anemography installment, 1/4 round spray nozzle, segment of orifice, dual orifices, Inner Tibet orifice, fast tube Flow sensor, jack-in low damaged due to pressing flowmeter, against wall wind pressure thief and so on 30 many kinds of varieties, 1000 many kinds of specifications, caliber from DN10-3000mm, pressure from PN0.01-32MPa, temperature from negative 260℃- 550℃.

我公司除生产上述标准节流装置外，还生产目前国内普通应用的各种特殊的节流件，如机翼型测风装置、环状节流式流量计、双重文丘里测风装置、1/4圆喷嘴、圆缺孔板、双重孔板、内藏孔板、均速管流量传感器、插入式低压损流量计、防墙风压取样器等30多种品种，1000多种规格，管径从DN10-3000mm，压力从PN0.01-32MPa，温度从负260℃-正550℃。

Manholes for engine room double bottom tanks to be mounted on angle bar coaming, 200 mm high, all other manholes to be fixed on doublings or to be flush with deck in way of passageways.

机舱双层底舱的人孔应安装有角钢制的围板，高度为200mm，所有其它的人孔应安装在双层底或通道处并与甲板平齐。

X-ray diffraction is one of the most common and efficient ways to measure a superlattice structure. This dissertation displays the detail results for characterization of Ge〓Si〓/Si superlattices by x-ray diffraction (including x-ray small angle diffraction and double crystal diffraction). It was found, when the growth temperature is lower, the intensities of xray small angle diffraction peaks are modulated by a periodical function, which indicates that both sets of interfaces of the superlattice is highly flat; when the growth temperature is higher, the diffraction peak intensities are simply decay with the increase of diffraction vector, which indicates that one set of interfaces is highly flat but another is not; when the growth temperature is very high, the diffraction peaks are reduced more rapidly, which indicates that both sets of interfaces are not ideal.

本文详细介绍了用X-射线衍射（包括X-射线小角衍射和双晶衍射）方法对Ge〓Si〓/Si超晶格结构特性测试的结果，尤其是发现，当Ge〓Si〓/Si超晶格的生长温度较低时，X-射线小角衍射谱峰的强度随着衍射波矢的增加而周期性调制，表明超晶格的两套界面都十分平整；当生长温度较高时，Ge〓Si〓Si超晶格的X-射线小角衍射谱峰的强度随着衍射波矢呈简单的衰减变化，对应于超晶格内有一套界面不平整的情况；当生长温度进一步提高时，X-射线小角衍射峰明显减少，表明超晶格内两套界面都不理想。

The common method for obtaining the angle of the plane figure to projection plane is through the right-angled triangle method after getting the double-face projection of the plane figure on the basis of the conception of maximum oblique line.

求平面图形对投影面的倾角，通常需要知道平面图形的两面投影，利用最大斜度线的概念，通过直角三角形法求得。

Using laser Doppler effect , based on measurement of the rotate speed of single section , the speed difference of double sections is measured and integrated , then the torsion angle of rotating shaft on torque effect is got. The non2contact torque measurement is realized , and dynamic monitoring of rotary machine equipment is achieved.

利用激光多普勒效应，在单截面测量转轴转速的基础上，采用双截面测量转速差并积分得到转轴在扭矩作用下的扭转角，实现扭矩非接触测量，达到回转机械设备的动力监测的目的。

The "se" in any society has a double-faced trait that is ,the sociality and the animality.

这种选择即使色获得进入主流话语的合法性，又使色的解放陷入一种尴尬的境地：正如老狼文中提到，色是伴随着性而展开的，任何社会中的色都有其社会性和生物性。

After inducing 1%～16% of the aniseikonia, there is no significant difference between double-screen ATBC and theoretical results. It illustrates that ATBC can reflect the ratio of the image size of the subjects'eyes successfully and it can be applied to clinical examinations as well as experimental studies.

人工诱导屈光参差后，双屏显示计算机不等像检查结果和理论计算值的差异无显著性，两者有很好的相关性，说明该检查能够准确的反映被检者双眼影像的大小，可以用于临床检查及实验研究。

In this thesis, a convenient and efficient synthesis of highly functionalizeddihydropyrido[2,3-d]pyrimidines via a double [5 + 1] annulation strategy startingfrom easily available α-alkenoyl-α-carbamoyl ketene--acetals 1 and cheapreagents (NH4OAc, DMF, and POCl3) has been developed.

本论文探索了一种简便有效的合成高度官能化的二氢吡啶并[2，3-d]嘧啶的方法，此方法由易得的α-乙酰基-α-氨基乙酰基二硫缩烯酮1和便宜的试剂(醋酸铵，二甲基甲酰胺和三氯氧磷)通过两步[5 + 1]加成而实现。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。