tract的例句（tract在句子中的用法）

• He’s suffering from an acute infection of the lower respiratory tract. 他患有急性下呼吸道感染。
• In the past nothing could grow on this tract of land. 过去这块地不立苗.
• Acute pharyngitis is a common upper respiratory tract disease in children. 急性咽炎是一种常见的上呼吸道病的儿童.
• They have lifted water from the Yellow River onto the high land and reaped a good cotton harvest on a 300 - acre tract. 他们把黄河水引上高原,使300公亩棉田获得丰收.
• To the north of the river is an immense wooded tract. 河北面是一大片林地.
• A vast tract of land is ready for development. 一大片广阔的土地可待开发。
• Amyotrophic lateral sclerosis ( ALS ) involves upper neuron , lower neuron and corticospinal tract. 肌萎缩侧索硬化 症 累及部位包括上 、 下运动神经元以及皮质脊髓束.
• In the absence of an obstructive lesion of the urinary tract, this illness is self - limited. 若无尿路梗阻, 则本病具有自限性.
• Sex hormon have no effect on laryngeal nerve - tract and nerve fiber. 喉部神经纤维束的粗细,在变性期后可能不受性激素的影响.
• The site urinary tract obstruction and hydronephrosis could be clearly shown. 结果所有病例均清晰显示梗阻部位及尿路积水情况.
• Highstand System Tract mainly develops depositional system of offshore - meare, fluvial facies and prograded delta. 高位体系域主要发育滨浅湖相 、 河流相及进积型三角洲沉积体系.
• Objective : To study hemostatic action of Ar + laser to haemorrhagia of gastrointestinal tract mucous membrane. 目的: 研究氩离子激光对胃肠道粘膜出血的止血作用.
• Neoplasia of the genitourinary tract accounts for about one fifth of adult tumors. 泌尿生殖道肿瘤约占成人时期肿瘤的1/5.
• Inflammatory fibroid polyp, an uncommon lesion of the gastrointestinal tract, most commonly occurs in the stomach. 摘要炎性纤维息肉是一种不常见的胃肠道病变, 胃是病变最常出现的器官.
• 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》。
• Acute sinusitis is usually initiated by an acute respiratory tract infection of viral etiology. 急性鼻窦炎常常是由病毒性病因的急性呼吸道感染而发生.
• 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。
• Foods are broken down in the digestive tract. 食物在消化道里分解。
• Methods : The neuronal tract tracing by applying HRP ( horseradish peroxidase ) , BDA ( biotinylated dextran amine ). 方法　HRP和生物素结合的葡聚糖胺 ( BDA ) 的神经示踪技术.
• Defecation ( or Bowel movement ): Elimination of feces from the digestive tract. 排 粪: 将粪便排出消化道的动作.