1) Parafossarulus striatulus
纹沼螺
1.
taiwanensis in dung of ducks were collected by method of sedimentation,and the rediae and cercariae in Parafossarulus striatulus were isolated by tabletting and microscopic examination.
方法收集淮河沿岸家鸭粪便并用水洗沉淀法查找台湾次睾吸虫卵;取纹沼螺经压片、镜检,分离雷蚴和尾蚴;取麦穗鱼肉压片和研细、水洗、沉淀、镜检,分离麦穗鱼体内囊蚴,并将分离获得的囊蚴感染雏鸭;解剖家鸭和人工感染的雏鸭,取胆囊分离成虫。
2.
The production of Parafossarulus striatulus in Lake Biandantang was calculated by using four method.
采用四种方法对扁担塘纹沼螺的周年生产量进行了测算 ,结果表明 ,四种方法得到的生产量吻合极好。
2) thread
[英][θred] [美][θrɛd]
螺纹
1.
Stress analysis on thread hole in woven composite materials;
燃料电池复合材料结构螺纹孔联接的应力分析
2.
FEM analysis and design of the magnetizer on external thread testing of drill pipe;
钻杆外螺纹检测中磁化器的有限元分析与设计
3.
The Design of the Special Installation of Thread Machining;
特殊螺纹加工装置的设计
3) screw thread
螺纹
1.
Calculation and analysis on failure of J55 tubing string screw thread;
J55不加厚油管螺纹滑脱失效计算分析
2.
Analysis and prevention on screw thread failure of oil pipe;
油管螺纹失效分析与预防
3.
A comprehensive analysis on the failure of the screw threads connecting the oil tubes;
油管联接螺纹失效综合分析
4) Screw
[英][skru:] [美][skru]
螺纹
1.
Flaw Recognition of Screw Based on Alternating Magnetic Flux Leakage Testing;
交变漏磁检测在螺纹缺陷检测中的应用
2.
The Study on the Machine Vision Method of Screw Measurement;
螺纹检测的机器视觉方法研究
3.
The Study of Screw Parameter Measurement Based on Computer Vision;
基于计算机视觉的螺纹参数检测算法研究
5) threads
螺纹
1.
Seal analysis of API8 button round threads;
API8牙圆螺纹接头密封性分析
2.
Simple method calculating the big pore size and the small pore size of cylinder tube threads in drawing;
在绘图中圆柱管螺纹大径小径简便计算法
3.
In view of the problems of the standard SY/T-5383-1999 "Downhole Motors" concerning the threads, suggestions for its modification are proposed based on the on-site situation to make the threads' flexural strength achieve a more balanced connection and to make the standard more scientific and reasonable.
针对SY/T5383-199《9螺杆钻具》标准中有关螺杆钻具连接螺纹存在的一些问题,联系现场工作实际,提出了修改建议,以使螺杆钻具连接螺纹的弯曲强度比更加接近平衡连接,整个标准更加科学合理。
6) whorl
[英][wɜ:l] [美][wɝl]
螺纹
1.
3D Simulation of Whorl Based on AutoCAD;
利用LISP编程,在AutoCAD中实现螺纹三维仿真
2.
The alternating current magnetic field leakage testing(AC-MFL) is introduced to identify the flaw of whorl.
针对钢管螺纹缺陷的识别,提出了采用交变漏磁法进行判别。
补充资料：沼螺属
| 沼螺属 Parafossarulus 软体动物门中腹足目豆螺科的一属。壳高一般10毫米以上。壳坚厚。壳面具有螺旋纹或螺棱；壳口周缘厚，有深色框边。厣为石灰质薄片，与壳口同大小。广布于中国。日本、朝鲜和越南也有分布。 沼螺雌雄异体，卵生，卵产于胶质透明的卵袋内，卵袋贴附于其他贝壳或水中物体上。成螺栖息于有水草孳生的溪流、湖泊、沟渠和池塘内，冬季潜于泥中越冬。 纹沼螺分布于中国各地，为华枝睾吸虫和抱茎棘隙吸虫的第一中间宿主，禽类和鱼类的天然饵料，它危害绿肥水浮莲和凤眼莲的栽培。中华沼螺亦为华枝睾吸虫的第一中间宿主。 |
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条