口环,wear-ring英语短句,例句大全

口环,wear-ring
1)wear-ring口环
1.The effects of the variations of wear-ring clearance on the performance of the pump have been investigated via experiments when pumping water.以油田和炼油厂常用的65Y60型离心油泵为研究对象,在分别改变叶轮前、后口环,并同时改变前、后口环间隙的条件下,研究了离心油泵输送清水时口环间隙变化对泵性能的影响。

英文短句/例句

1.Environmental Capacity of Population in the Three Gorges Area and Environmental Settlement;三峡库区人口环境容量与环境移民安置选择
2."Duchess of Kent Children's Hospital at Sandy Bay, The"大口环根德公爵夫人儿童医院
3.Rotary intersection (roundabout)环形交叉路口（圆环）
4.expiratory port of circle absorption system环流吸收系统的呼出口
5.inspiratory port of circle absorption system环流吸收系统的吸入口
6.circlip, of iron or stee开口簧环,铁或钢制
7.piston ring free gap活塞环自由开口间隙
8.ring gap in bore汽缸内活塞环切口间隙
9."Committee of Population, Resources and Environment"人口资源环境委员会
10.mixing and circulation types in estuary河口的混合和环流类型
11."China's Population ,Resources and Environment"中国人口资源与环境
12.North Huancheng Road at West Zhongshan Road junction环城北路中山西路口
13.Returns a Window object representing the main environment window.返回表示主环境窗口的窗口对象。
14.Provide steam rings for tube side inlet and outlet flanges.管程的入口与出口法兰配备蒸汽环。
15.small ear-ring (used to keep the hole in a pierced ear open )（用以保持耳环孔不封口的）小耳环.
16.The mountain is encircled by the doughnut-shaped depression of the caldera.山为环形的破火山口洼地环抱着。
17.Design of Serial Communication on Linux Platform and Windows PlatformLinux环境与Windows环境交互串口通信设计
18.INDUSTRIAL DEVELOPMENT AND ENVIRONMENT PROTECTION IN THE PEARL RIVER MOUTH RIM,AS COMPARED WITH THE TOKYO BAY RIM;环珠江口与环东京湾地区产业发展及环境比较

延伸阅读

妊娠期子宫颈内口环扎术妊娠期子宫颈内口环扎术　　宫颈内口松弛是导致习惯性晚期流产及早产原因之一。孕妇可有宫颈手术史，急产或产钳、臀牵引手术史可能导致宫颈损伤而致内口松弛，也有无明显原因者，检查时宫颈内口较松，往往露出羊膜囊。可用宫颈内口环扎术维持妊娠。宜在妊娠14周前手术。腰椎麻醉或鞍麻下，孕妇取头低位并膀胱截石位。常规消毒后，以组织钳夹持子宫颈前唇，用4号尼龙线环绕子宫颈作荷包缝合。进出针处分别在11°～10°，8°～7°，5°～4°及2°～1°处。然后打结。妊娠14周后，子宫颈口明显松弛，虽缝合方法相同，但其效果较妊娠14周前手术差。术后，孕妇应卧床休息，给以抗生素和镇静剂治疗，以预防流产。待病情平稳后可定期随访。若破膜，应立即拆除缝线。若能维持到妊娠37周后，应拆除缝线，争取阴道分娩。如临产后宫颈水肿不能扩张者，应行剖宫产术。　　