1)  high pressure water descaling
机前高压水除鳞
2)  oxygen supply before the blower
机前供氧
3)  Stochastic frontier
随机前沿
1.
Cost Efficiency of Manufacturing Firms in China Based on Stochastic Frontier Method;
本文运用了2001与2004年度我国制造业上市公司数据,采取随机前沿技术的成本函数,对254家企业进行成本函数估计得出具体参数值,按平均值分别测算我国制造业上市企业的前沿成本、成本效率、技术效率、配置效率和规模经济性。
4)  motor preposition
电机前置
1.
The difference in effect of motor preposition or postposition on axle weight transfer suspended on frame is not obvious.
电机前置、后置对架悬机车轴重转移的影响不大。
2.
The calculation results indicate that the motor preposition and postposition are not highly influential to the axle weight transfer of C0-C0 locomotive with bogie-mounted and quill drived motor.
计算结果表明,电机前置、后置对采用轮对空心轴的转向架悬挂机车轴重转移的影响不大,也就是说,对于轴重转移,电机既可顺置,也可对置,其影响不如抱轴式悬挂电动机明显,这与理论分析一致。
5)  pre-purification technology
机前净化
1.
The pre-purification technology status of gasoline engines emissions is introduced, variety influence of pre-purification technology to gasoline engine emissions performance is analyzed and the pre-purification technology developing trends are forecasted.
系统介绍了车用汽油机排放的机前净化技术的现状,分析了各种机前净化技术对汽油机排放性能的影响,展望了机前净化技术的发展趋势。
6)  mobile phone front shell
手机前壳
1.
Development of injection mould with core-pulling mechanism in fixed half for mobile phone front shell;
基于定模抽芯的手机前壳注射模设计
参考词条
补充资料:前除
1.上次的任命。 2.屋前台阶。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。