tracts

They compared the marsupial 's intestines10 to those of pigs , by inserting a balloon into the animals ' digestive tracts to see how it stretched to fit the balloon , and found regions of varied11 thickness and stiffness .

他们将袋熊的肠道和猪的肠道做了比较，将一个气球塞进两种动物的消化道，观察消化道为了容纳气球是如何伸缩的，结果发现不同区域的厚度和硬度都不同。

Two major infection sites were the respiratory and the gastrointestinal tracts ;

感染的主要部位是呼吸道，其次为胃肠道；

A vast tract of land is ready for development

一大片广阔的土地可待开发。

A cold is an infection of the upper respiratory tract .

感冒是上呼吸道的感染。

Water is ideal to flush the kidneys and the urinary tract .

用水清洗肾脏和尿道最理想不过。

Vast tracts of the country are wild and undeveloped

乡间大片大片的荒地尚未开发。

Foods are broken down in the digestive tract

食物在消化道里分解。

Instruments developed at the hospital allow doctors to thread microscopic telescopes into the digestive tract .

医院开发研制的仪器使医生们得以将显微内镜伸入消化道。

They cleared large tracts of forest for farming , logging and ranching .

他们清除了大片的森林以经营农耕、采伐与畜牧。

She produced a feminist tract , ' Comments on Birth-Control ' , in 1930 .

她1930年写了篇女性主义的短文《论节育》。

In the past nothing could grow on this tract of land .

过去这块地不立苗。

Large tracts of wasteland have become a granary .

荒滩变成米粮川。

They opened up large tracts of wasteland .

他们开垦了大片荒地。

Large tracts of sandy wastes were reclaimed .

大片大片的沙质荒地被开垦出来了。

There are tracts of desert in Australia .

澳大利亚有大片沙漠。

Clinical Analysis of Lower Respiratory Tract Infection in Patients with Malignant Tumor

恶性肿瘤患者医院内下呼吸道感染临床分析

Clinical Analysis of 123 Cases of Lower Digestive Tract Hemorrhage

小儿下消化道出血123例报告

Clinical analysis of vein injection on children with acute respiratory tract infection

急性呼吸道感染患儿门诊静脉给药临床分析

Influence of psychological nursing care and health education on urinary tract infection patients

心理护理与健康教育对尿路感染病人的影响

Results : The cause of respiratory tract complication are serious .

结果：呼吸道并发症病因多样，导致后果较为严重。

Experimental study of sacral nerve distribution and its influence on lower urinary tract function

骶神经对下尿路的支配及功能影响的实验研究

The two tracts variation of brachial plexus : one case report

双束臂丛变异1例

Objective To clarify hospital urinary tract infection secondary to diabetes .

目的了解糖尿病患者医院内尿路感染情况。

The research of the fungus ' distribution and resistance on respiratory tract infection patients

真菌在呼吸道感染患者中的分布及耐药性研究

Clinical Investigation and Analysis of Nosocomial Fungal Infections in Lower Respiratory Tract

医院内下呼吸道真菌感染临床特点分析

Risk Factors of Lower Respiratory Tract Infection in Neurology Department

神经内科下呼吸道感染危险因素分析

Research Progress on the Relative Factors of Catheter-Associated Urinary Tract Infection

留置尿管伴随性尿路感染相关因素研究进展

Change of immunoglobulin level in pilots during upper respiratory tract infection

飞行人员上呼吸道感染时免疫球蛋白水平的变化

Results White matter fiber tract in all volunteers and patients could be observed clearly .

结果全部志愿者和患者均可清楚地观察白质纤维束形态。

Objective To explore the imaging characteristics of malignant lymphoma of intestinal tract .

目的探讨肠道恶性淋巴瘤的影像特点。