By means of the combination of the pressure cell and the piezoresistive pressure transducer, the measurement difficulty caused by the small dimension of the gauge was avoided. 利用压阻型压力传感器和压力盒相结合的办法克服压力探头敏感面小带来的测量困难,成功进行了地下数百米深度处地应力测量。
A combination of magnetic locator sub, temperature bomb, pressure gauge, electromagnetic flowmeter becomes feasible in ASP injection profile logging and may provide us more and better information. 选用磁性定位器、井温仪、压力仪、电磁流量计多参数组合测井可以较好地解决三元复合驱注入剖面的测井问题,多参数组合测井综合解释可以提供更多、更好的资料和信息。
The Application of Pneumatic Hydraulic Combination System in Driving Mechanism of Gauge Head 气液联动系统在测头驱动机构中的应用
Then it is supposed that the constraint multipliers are the functions of time and canonical variables, and combination coefficients in the gauge generator are the functions of time, canonical variables and constraint multipliers, the extended canonical Noether identities ( ECNI) are deduced. 在约束乘子是时间和正则变量的函数,以及规范生成元的组合系数为时间、正则变量和约束乘子的函数一般情况下,建立了扩展正则Noether恒等式(ECNI)。
The drilling speed may be effectively raised through applying the combination drill coordinating with PDC or strong gauge and high rotary speed cone and the large diameter drill pipe and collar, etc. 复合钻配合PDC或强保径高转速牙轮、大钻杆、大钻铤,可以有效地提高速度。
The trend of new technique for manufacturing Ni-Cr alloy thin film with a combination of characteristics: high resistivity, low temperature coefficient of resistance ( CR), large gauge factor, and good thermal stability is presented. 阐明了制备具有高电阻率、低电阻温度系数、高应变灵敏系数、良好的热稳定性等优异综合性能的镍铬合金薄膜的新工艺发展趋势。