英汉双语例句-生物医药大词典

Primary small intestinal carcinomas are very rare, but the majority of those that do occur arise in the region of the ampulla, where they may become symptomatic through biliary or pancreatic duct obstruction.

中文意思：
原发性小肠腺癌很少见，但大部分发生在壶腹区域，在那里它们通过堵塞胆汁和胰液的输送而产生症状。

以下为相关句子列表(点击查看，可以看对应的解释）：

	Primary products are refined coking coal, high grade heating coal, coke, power supply and chemical products, construction materials and electromechanical equipment. etc.			主要产品有炼焦精煤、优质动力煤、喷吹煤、焦炭及电力、煤化工产品、建材、煤矿机电设备等。
	Primary pulmonary artery sarcoma is a rare tumor.			摘要肺动脉肉瘤是一种罕见的肿瘤。
	Primary renal carcinoid is a extremely rare tumor and is oer-represented in patients with horseshoe kidney and other congenital deelopmental renal defects (J Urol 1997 June; 1572059-66).			原发性肾类癌相当罕见，主要见于马蹄肾和其他先天性肾发育不全的患者。
	Primary renal sarcoma is extremely rare and account for less than 1% of malignant renal tumors.			摘要原发性肾脏肉瘤极罕见，约占所有肾脏恶性肿瘤的1%不到。
	Primary school teachers use a lot of visual aids.			小学教师使用大量的视觉教具。
	Primary small intestinal carcinomas are very rare, but the majority of those that do occur arise in the region of the ampulla, where they may become symptomatic through biliary or pancreatic duct obstruction.			原发性小肠腺癌很少见，但大部分发生在壶腹区域，在那里它们通过堵塞胆汁和胰液的输送而产生症状。
	Primary splenic lymphoma is a relatively rare cause of splenomegaly; its reported incidence being less than 1% of non-Hodgkin lymphoma in most reported series.			摘要原发性脾臓淋巴瘤是造成脾臓肿大的罕见原因之一，文献上报告仅占非何杰金氏淋巴瘤比率不到1%。
	Primary squamous cell carcinoma of the renal pelvis is quite rare.			摘要原发性鳞状上皮细胞癌在上泌尿道系统是相当少见的疾病。
	Primary state soil sampling is an important tache in engineering exploration, different sampling method has different affection to the quality of soil sample.			摘要采取原状土样是工程勘察中的重要环节，不同的取样方法对土样质量的影响不同。
	Primary vascular tissue, which is found in all vascular plants, is formed from the procambium.			初生维管组织由原形成层发育而来，在所有维管植物中都有存在。
	Primary viral pneumonia and multi-organ failure are common.			其中病毒性肺炎和多器官衰竭最为常见。