1) invalid fracture
无效缝
1.
The impact of invalid fractures on development effect in Toutai area of Daqing;
大庆头台地区扶余油层无效缝对开发效果的影响
2) formation of the invalid fractures
无效缝形成
3) seamless
[英]['si:mləs] [美]['simləs]
无缝
1.
This article takes the flange nut as an example,discusses the technique of cold extruding seamless pipe to make large flange nut and the feasibility of the technique.
以大型法兰面螺母为例 ,论述了用无缝钢管冷挤大型法兰面螺母工艺的可行
2.
A new seamless integrated navigation algorithm was proposed on the basis of ANFIS in order to enhance the performance of GPS/INS integrated navigation system during GPS outages.
针对GPS卫星信号失锁条件下GPS/INS组合导航性能大幅度下降的缺点,设计了一种基于ANFIS的无缝组合导航方法,当卫星数目不低于4颗时采用伪距/伪距率的卡尔曼滤波算法,一旦卫星数目少于4颗时采用ANFIS系统估计导航误差,抑制INS的误差积累,从而实现无缝导航。
4) seamless casing
无缝套管
1.
In order to strengthen the oil-field user’s confidence in the ERW casing made in China,the contrast study of the dimension control,residual stress,and pipe collapse pressure between ERW and seamless casing was conducted in this paper.
为了促进国产直缝电阻焊(ERW)套管在油田的广泛应用,对ERW套管与无缝套管的尺寸精度、残余应力和管体挤毁压力进行了试验研究。
5) seamless tube
无缝钢管
1.
Present Status and Development of Alloy Steel Seamless Tube;
合金钢无缝钢管的现状和发展
2.
Analysis on stretch reducing rolling process of seamless tube by FEM;
无缝钢管张力减径过程的有限元分析
3.
Development of round billet of heat resistant stainless steel seamless tube for high pressure boiler
高压锅炉用耐热不锈钢无缝钢管圆管坯的研制
6) seamless steel tube
无缝钢管
1.
Technological transformation of enterprises produced medium diameter seamless steel tube with cold drawn processing;
冷拔中径无缝钢管生产企业的技术改造
2.
Discussion on development countermeasures to seamless steel tube technical equipment in China;
中国无缝钢管技术装备的发展对策探讨
3.
Present situation analysis of Chinese seamless steel tube technology equipment;
中国无缝钢管技术装备的现状分析
补充资料：肺泡无效腔
肺泡无效腔
alveolar dead space
在病理条件下，部分肺泡缺乏，甚至无血流灌注，这部分肺泡气体交换下降，甚至无气体交换。
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