derivation是什么意思

网络释义

用法例句

This text according to thermodynamics the second laws,didn t press general textbook to pass the teaching mode of the card promise axioms derivation function circularly from the card promise,but direct from can go against circulation with can t go against the circulating derivation Entropy function,make the student comprehend thermodynamics from a new angle the second laws.

根据热力学第二定律,没有按一般教科书从卡诺循环通过卡诺定理引出熵函数,而是采用直接从可逆循环和不可逆循环引出熵函数的教学模式,从而使学生从一个新的角度去理解热力学第二定律。

A description is made on a structure operating principle and main points of the design of auto-feed progressive die of bending extruding flat and cutting for the leading foots.

论述了用在通用冲床上的引出脚弯曲挤扁切断自动模结构形式、工作原理和设计要点。

According to the operation and development of radiation therapy in the world,in order to further promote the radiation therapy of tumour in China,a design of a special synchrotron with two super-periodicity for hadron therapy is presented,including lattice,injection system,RF acceleration and slow extraction of the third order resonance.

根据国际放射疗法的现状和发展,为了进一步提升国内的肿瘤放射疗法,研究设计了1台由两个完全相同的超周期组成的治癌专用离子同步加速器,包括LATTICE、多圈注入系统、RF加速及三阶共振慢引出系统。