Second-line drugs will be used for a long course of treatment, when patients are more likely to leak medication, a greater variety of training out the possibility of resistance. 使用二线药物疗程会相当长,这时病人漏用药的可能性更大,更加大了培养出耐药品种的可能性。
The technology of leak resistance and sealing and the overview of a new device 防漏堵漏固井工艺技术及新型设备概述
Based on the fractures of penetrability formation and fissured formation, the leak resistance and sealing technology while drilling was put forwards based on physical method. 对转基因常用的物理方法进行系统的介绍,包括各种基因转化技术产生的生物效应、转基因的基本原理和影响因素等。
In reference of the characteristics and influencing factors of the thread seal, this paper studied the determination method of leak off resistance of tubing and casing threads and the selection of thread type for design job of string pipe. 文中结合API螺纹密封的特点和影响因素,论述了油、套管螺纹泄漏抗力的确定方法及螺纹形式的选择,以供管柱设计时参考。
Research and application of leak resistance and sealing technology while drilling 随钻防漏堵漏技术的研究与应用进展
Dipping treatment of float ball of boiler water level controller for leak-resistance and anticorrosion 锅炉水位调节器浮球防蚀防漏浸胶处理
Experimental research shows that the key technology of a conduction cooled magnet depends on controlling heat leak, reducing interfacial thermal resistance and optimizing the conduction cooled structure of the magnet system. 实验研究表明,控制系统的漏热,优化磁体内部导冷结构,有效减少热传导部件的接触界面热阻是制冷机直接冷却高温超导磁体的关键技术。
This paper introduces the improving procedure of lubrication system, and the taking measures in air supply, oil pump, atomizing, leak resistance, energy saving, etc. 介绍了对润滑系统的改进过程,以及对气源、油泵、雾化、防泄漏、节能等方面所采取的措施。总结了改进效果。
On the basis of endoreversible Stirling cycle, the influence of heat leak on the cycle is discussed and the basic optimal relation of Stirling engine is derived by taking account of heat resistance, heat leak and finite speed rate process. 在内可逆斯特林循环的基础上,进一步讨论热漏对循环的影响。导出了考虑热阻、热漏和有限速率过程的内可逆斯特林热机的基本优化关系。
The influence of heat leak on the carnot heat engine under the condition of mixed heat resistance 热漏对混合热阻条件下卡诺热机性能的影响
Leak resistance techniques of thief zone cementing in domestic oil and gas fields 国内油气田漏失性地层固井防漏技术研究
On the basis of the geological condition, the cementing quality was improved with a primary qualification rate of 97% by optimizing new filtrate reducer for low temperature and studying on kick control and leak resistance in heavy crude shallow well. 针对该区块的地质情况,通过优选新型低温降失水剂以及对稠油浅井防涌、防漏措施的研究,确保了该区块固井质量一次合格率达到97%。