成对的

Objective: To study the value of CT perfusion combined with CT angiography in diagnosis of cervical vertigo.

目的：探讨脑CT灌注成像联合CT血管造影成像对颈性眩晕病因的诊断价值。

Take the Yangzi petrification factory dicarboxylic acid waste water as the research object, attempts and auxiliary carries on processing using the catalyzed oxidation by the ultrasonic wave to it, the inspection oxidant throws the increment, the time, the dicarboxylic acid density, whether there is as well as to its processing effect influence.

请帮忙翻译下此摘要成英文啊！以扬子石化厂对苯二甲酸废水为研究对象，尝试利用催化氧化并辅以超声波对其进行处理，考察氧化剂投加量、曝气时间、对苯二甲酸浓度、以及有无曝气对其处理效果的影响。

A mass point imaged by neutron digital imaging system can be represented in terms of PSF.

中子数字成像系统，其对样品中一个质点的成像，可以采用点扩散函数加以描述，记为PSF。

Finally, elastic screen propagator with wide angle correction and vector imaging condition are tested with model data, and the migration result is ideal.

利用模型数据，对大角度相位校正后的弹性屏延拓算子和矢量成像条件进行了试验，成像效果理想。

Based on predecessor\'s research results, formation condition of oil-gas reservoirs of S_(2+3) oil layer in westslope region was comprehensively and systematicaly studied, through using comprehensively seismics,logging, well logging, core, analysis assay data and paleontology data and adopting the latest theories andtechniques and methods of structural geology, sequence stratigraphy, sedimentography, petroleum geology,and oil-gas accumulation dynamics, etc. Main controlled factors, periods and models of oil-gasaccumulation and distribution were identified, favorable exploration areas were forecasted, throughdissecting typical oil-gas reservoirs and analyzing oil-gas accumulation mechanism and process.

本文在充分借鉴前人研究成果的基础上，综合利用地震、测井、录井、岩心及分析化验和测试资料，采用构造地质学、层序地层学、沉积学、石油地质学、成藏动力学等多学科的最新理论和方法，对西斜坡区萨二、三油层油气成藏条件进行了全面系统的研究，通过西斜坡区萨二、三油层典型油气藏解剖和油气运聚机理及过程分析，搞清了其油气成藏与分布的主控因素、期次和模式，进而预测有利勘探区带。

In your sentence you should use an adverb, but you chose the adjective "everyday".

如果把everyday 分开成every day，就成了一个副词短语，用在你的句中，就对了。

Based on analysis of the spectral imaging theory, each optics element of thespectral imaging system is designed.

在详细研究光谱成像理论的基础上，对光谱成像系统中各个光学元件进行了设计。

Methods: Thirtythree patients were reported. Clinical manifestation,imaging findings including the computer tomography, magnetic resonance and digital substruction angiography were analyzed.

对33例椎基底动脉系统脑梗死患者的临床资料进行回顾性分析。1例行CT检查，32例行头颅核磁共振检查。2例行CT血管成像检查，2例行磁共振血管成像检查，4例行脑血管数字减影检查。

A series of p-toluene sulfonylamido acetacylhydrazone derivatives were synthesized from p-toluenesulfonyl chloride which reacted with glycine to get the intermediate p-toluene sulfonylamido glycine, then through the esterification, hydrazinolysis to afford another intermediate p-toluene sulfonylamido acethydrazide, which condensed with different aldehydes to obtain the target compounds that were characterized by IR, 1H NMR, 13C NMR spectra and elemental analysis.

魏太保 ；冷艳丽；王永成；张建辉；张有明*摘要：以对甲苯磺酰氯为原料，通过与氨基乙酸反应得到中间体对甲苯磺酰氨基乙酸，再经酯化、肼解得到对甲苯磺酰氨基乙酰肼，然后与相应的醛缩合得一系列对甲苯磺酰胺基乙酰腙类化合物。其结构经元素分析， IR， 1H NMR和13C NMR确证。

Young Ampullaria gigas maturates after developing for 38 days under water temperature 20-30°C with sufficient food.

成螺密度、性比及水草覆盖率对雌螺的产卵频数、产卵量及成螺生长速度均无显著影响。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。