“optical level”的概念、定义、翻译、参考文献-科学参考

单词	optical level
释义	optical level Encyclopedia 工学水准仪释 optical level光学水准仪使用光学方式构成水平基准线，并配套水准标尺测定两点间高差的测绘仪器。理学〔光学仪器〕释 optical level光学水准仪一种能给出一条水平视线进行工作的光学仪器。又称水平仪。
随便看	second order spectrum second-order sufficient condition second-order system second order temporal coherence second-order temporal coherence second order term second-order theory second-order variation second order wave force second organic aerosol compounds second orthogonality relation second Pappus theorem second partial derivative second pendulum second-person virtual reality second plenary session of ninth central committee of CPC Second Plenary Session of Seventh CPC Central Committee second polar second polar body second power second power point second principal line second principal plane second problem of cousin second prolongation

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