state surface meaning in English

状态表面

Firstly part of quadratic term of taylor series is chosen ; a low - dimension surface is used to approximate limit state surface ; and the modified reliability formula is derived
首次选取泰勒级数的部分二次项，用一个距原点最近点处拟合的超低维曲面近似极限状态面。
So a generator of visible light steady - state surface targets and pulse point targets is developed , which offers targets for studying transient optical transmission effects of flow in high - speed wind tunnel
因此研制了可见光稳态面目标以及脉冲点目标发生器,该系统为在高速风洞中研究高速流场的瞬态光学传输效应提供目标。