The dioptric equivalent of the near point of emmetropia(or the ametropia corrected)is the amplitude of accommodation.

正视眼(或屈光不正矫正后)近点的等效焦度称为度。

This paper introduce the terminal-port characteristic relation of Nullor and the nullor eguivalent circuit of transistor.A method of analysing and designing parameter of bias circuit is given.

本文介绍了零泛器的端口特性关系，晶体管的零泛等效电路，给出了应用零泛器设计计算偏置电路参数的一种方法。

The Air Kerma Rate of 125I sources is determined by the well-type ionization chamber.Thereafter the apparent activity of 125I sources is calculated and measured results are anylyzed.

采用井型电离室测定125I粒源的空比释动能率，进而估算出125I粒源的表观活度（又称等效活度），并对结果进行了分析。

The deductive method of atomic spectral terms for equivalent and nonequivalent configurations is the key part of the study of quantum chemistry, structural chemistry and atomic physics.

等效组态和非等效组态光谱项的推求方法是量化学、结构化学和理学研究的重要内容。

A new point is put forward that transverse bimoment has different influence on the two kinds of cross section thin-walled beams, and on their St-Venant principle conditions. 2.

同时对外载等效中经常出现的横向双力矩这一广义力进行研究，指出它在开口和闭口薄壁梁约束扭转问题中和圣维南理适用条件中分别占有不同的地位。