utility constant的意思|示意
效用不变
utility constant的网络常见释义
固定效用 而在损耗性的种类方面，Raafat (1991)以时间价值来做分类，如下: (1) 固定效用（utility constant）：产品在使用的期限内，它的功能虽然有随时间减弱，但是使用期 间前后的效用并不会有显著的差異，如药水。
utility constant相关短语
1、 constant utility index 不变效用指数
2、 constant utility 效用不变
utility constant相关例句
The utility model relates to a mixer used for mixing diesel oil, water and emulsifier, composed of a constant pressure chamber, a choke, a nozzle, multilevel mixing chambers, an oil pipeline, etc.
一种用于柴油、水、乳化剂相混合的混合器，它是由恒压室、喉管、喷嘴、多级混合室以及输油管道等组成。
The utility model has advantages of constant pressure valve opening, no leakage and no error spraying, comparing to prior art.
本实用新型与已有技术相比具有定压开阀喷放，无泄漏，不误喷的优点。
Other characteristics, such as frequency, wave shape, and phase balance are seldom recognized by the consumers but are given constant attention by the electric power utility engineers.
而其它方面的特性，如频率、电压波形、各相平衡则很少被用户认识到，但这恰恰受到电力部门工程师们的时刻关注。
The utility model provides a constant magnetic field spoon shape bone-setting board used for the internal fixation of fracture of the area of the metaphysis of four limbs.
本实用新型提供了一种用四肢干骺端区域骨折内固定的恒磁场匙状接骨板。
The electric constant force hinge of the utility model has convenient operation and low cost.
本 实用新型的电动恒力铰链操作方便、成本低廉。
The utility model relates to an electromechanical integrated detector of digital processing for detecting a dissociation constant of weak electrolyte.
本实用新型涉及一种测定弱电解质解离常数数字化处理的机电一体化测定仪。