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OBJECTIVE: To compare the effects of titanium alloy and gold-platinum alloy porcelain-fused-to-metal on ultrastructure of canine gingival tissue.

目的：比较钛合金和金铂合金两种金属烤瓷修复体对犬牙龈组织超微结构的影响。

A genetic epidemiologic case-control study including 407 pedigrees(249 cabes and 158 controls)was car-ried out to estimate the segregation ratio and the hereditability(h￣2)of esophageal cancer by using the methodof Li-Mantel-Gart and Falconer,respectively,and to compare the genetic epidemiologic features from theother cancers.

本文通过遗传流行病学病例对照研究，对淮安407个家系（249个先证病例，158个对照），应用Li－Mantel－Gart和Falconer方法分别进行了分离比、遗传度估算及比较流行病学研究。

Since the syllabus requires you to read books from many historiographic traditions, it should not be hard to compare books on that level.

课程大纲已经要求阅读许多传统史学的作品，在相同基础下的书籍做比较应该不难。

Objective To observe the development of mouse kidney in vitro at embryonic day 12、14、16 and postnatal day 1, and compare with the development of homeochronous kidney in vivo. And to select eligible the embryonic age for kidney culture in vitro.

目的 观察胚龄12、14、16、以及生后1天的肾组织体外培养的发育情况，与同期在体发育进行比较，探讨肾组织体外培养的胚龄选择。

METHODS To retrospectively analyze the incidence rate of hospital infection,the infection sites,pathogenic bacteria,and predisposing factors in 348 cases with diabetic nephropathy,and to compare the index above with the homeochronous 466 diabetic patients without DN.

结果348例DN患者中有62例发生医院感染，感染率17.82%，高于同期DM患者；感染部位以呼吸道最为多见，占37.10%，其次为泌尿道(24.19%)和消化道(19.35%)；主要易感因素为血糖控制差、肾功能不全、高龄和住院时间长等。

Section two Evaluation on Function of Obstructive Kidney by Perfusion Imaging with Multi-slice Spiral CTObjective: To investigate the diagnostic value for hydronephrotic kidney by perfusion imaging with multi-slice spiral CT, and to compare the results with those of Doppler Ultrasonography.

10只健康成年日本大耳白，雌雄不限，在右侧输尿管部分梗阻模型制作前，应用多普勒超声及多层螺旋CT灌注成像进行相关参数检查；然后按Cheng的方法制作右侧输尿管部分梗阻模型，4周后再次检查。

Objective To compare the therapeutic effects of acupuncture and moxibustion and acupoint injection on hyperemesis gravidarum,and to search for a more effective method for treatment of the disease.

目的 观察比较针灸与穴位注射治疗妊娠剧吐的疗效差异，探寻临床治疗该病的较好方法。

The objectives of this study were to observe the difference of particle components on the filter before and after ultrasonic extraction, as well as to compare the particle components collected by an impinger sampler.

而本研究之目的在於观察经过震荡步骤后，微粒元素成分的改变情况，并尝试以impinger采样方式直接将微粒采集在水中，探讨采集在滤纸上及直接以水捕集微粒之间的差异性。

Objective To compare the PFN and DSH are two ways to treat intertrochanteric fractures of the therapeutic effect.

目的 比较PFN与DSH两种方法治疗股骨转子间骨折的治疗效果。

Objective To evaluate and compare the ability to detect tumor by bis (N-ethoxy-N-ethyl dithiocarbamato) nitrido 99mTc [ 99mTcN 2 ] and 99mTc hexakis-2- methoxyisobutyl isonitrile [ 99mTc-MIBI ].

目的 探讨99mTc-氮-二(N-乙基-N-乙氧基二硫代氨基甲酸盐)[99mTcN2]应用于肿瘤诊断的可能性并与99mTc-甲氧基异丁基异腈(99mTc-MIBI)肿瘤模型显像进行比较。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。