reference length

For the catholicity of the consequence about criterion for the terminal of backwater determination in analytic calculation of backwater length, it can be used as reference frame in mathematic model calculation.

回水长度解析计算方法中有关末端判别标准的研究结果具有一定的普遍性，在利用数学模型进行计算时可以作为参考依据。

The length formula of port roadway provides the reference of the port roadway design.

港内道路长度计算公式的导出为港口道路设计提供了理论上计算依据.

GPS plane precision checkout method, which has pertinence, of sample, length, and angular measurement is being analyzed and expounded for reference of high plane precision checkout.

由此，对具有专门的针对性的GPS平面精度检验方法，即样品检核法、长度检核法、测角检核法作出了分析和阐述，以供高精度平面精度检验参考。

If the absolute reference frame is admitted, in accordance with FitzGerald-Lorentz length contraction effect and Lodge-Lorentz time dilation effect, the slide down paradox can be eliminated.

如果承认存在绝对参考系，按斐兹杰惹-洛伦兹长度收缩效应和洛奇-洛伦兹时间延缓效应，就可以消除滑落悖论。

The detection rate of hearing loss at high frequency for the investigated people whose length of service was greater than or equal to 2a among the contact group was significantly higher than that of the reference group ( P ﹤ 0.05).

接触组中工龄≥2a的调查对象高频听力损失的检出率明显高于对照组（P＜0.05）。