1) maximum service life
最长工作寿命
2) extended service life
延长的工作寿命
3) working life
工作寿命
1.
During the drilling operation of directional wells and horizontal wells, there are many factors that may obviously influence working life of screw drill, which include the usepattern of screw drill, the control of drilling fluid performance, the optimization drilling parameters and operational method, etc.
在定向井、水平井等特殊工艺井施工过程中,螺杆钻具的工作寿命直接影响施工井的生产时效和钻井周期。
2.
Coiled tubing(CT) working life is very short,which is main fact to affect cost of CT services.
连续管工作寿命短是影响连续管作业成本的主要因素之一。
3.
Based on the problem of corrugated roller working life, the study of the behavior for corrugated roller 50CrMo steel and its cyclic heat treatment process was carried out, and the hardness and microstructure of the roller were analyzed.
针对瓦楞辊工作寿命低的问题,对瓦楞辊用50CrMo钢及其热处理工艺进行了试验,并分析了热处理后工件的硬度和显微组织。
4) service life
工作寿命
1.
Then the service life of the petroleum pipeline containing the crack is predicted in this paper.
以沿管道轴向扩展的疲劳裂纹扩展速率为基础，经过一定的修正，以此分析实际输油管道中较常见的内表面半椭圆裂纹的扩展规律，从而预测出含此种裂纹的管道的工作寿命。
2.
This paper analyses the factors influencing the service life of spiral bevel gears on rigs and proposes some measures to improve them.
该文分析了影响钻机弧齿圆锥齿轮工作寿命的因素，并提出了改进措施。
3.
Concrete durability is being quantified,and becoming part of reliability and service life design of reinforced concrete structures.
混凝土耐久性现在正在向定量化发展,同时正在融入钢筋混凝土结构可靠度和工作寿命设计体系。
5) operating life
工作寿命
1.
By dissecting the earlier having metal-shell quartz pressure sensor of operating life of oscillations,operating life mechanism of the sensor is analyzed and discussed.
通过对组装式石英谐振压力传感器解剖,分析影响传感器工作寿命的主要因素,并对其深入探讨,提出改善传感器工作寿命的具体措施。
6) long term operation life test
长期工作寿命试验
补充资料：元白席上作（一作吕岩遇钟离先生作）
【诗文】：
生在儒家遇太平，悬缨垂带布衣轻。
谁能世路趋名利，臣事玉皇归上清。
【注释】：
【出处】：
全唐诗：卷852-8
生在儒家遇太平，悬缨垂带布衣轻。
谁能世路趋名利，臣事玉皇归上清。
【注释】：
【出处】：
全唐诗：卷852-8
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