law of similarity

On the basis of least square and law of similarity of ventilator, the dimensionless performance curve equations of mine ventilator by operating data are fitted and the characteristic curve equation of mine ventilating network according to its characteristic factors is constructed.

本文运用最小二乘法和通风机的相似定律，用实测数据拟合了矿井通风机无因次性能曲线方程；

The current similarity law of model test for cooling water flow in pond is based on the principle of total heat balance, in which the flow structure is not taken into account.

我国现用的冷却池模型试验方法和模型与原体的水温换算关系，是由系统的总体热平衡关系求得的，没有考虑水流内部的运动关系。

Law of similarity for air cushion surge chamber model test

气垫式调压室的模型相似律

In order to quickly get the decision-making, vector cosine law is used for searching similarity cases. Compared to the use of words searching, it takes more less time to get the most similarity case.

为了快速得出决策，提出利用向量余弦法进行案例的相似度搜索，相比文字查询方法在时间上少了一个数量级。

According to the law of similarity of fan, the characteristic of long-distance tunneling ventilation was analyzed, and the energy consumption of variable frequency fan was described.

根据风杌的相似定律，阐述了特长隧道掘进通风的特性，详细分析了风机变频工作的能耗。

Similarity Law in Simulation Test of Engineering Blasting

工程爆破模拟试验的相似律

To these blasting hydraulic problems, in addition, the paper presents a feasible simulation method, which abides the law of gravity but ignores the similarity in blast dynamics.

文中还介绍了爆破水力学及试验模拟方法，确认忽略爆炸动力相似，按重力相似律进行模型设计是可行的。

Research on Similarity Simulation Experiment of Development Law of Mining-induced Overburden Stress Overburden stress is calculated using the density logging data.

采动覆岩应力发展规律的相似模拟实验研究根据岩石密度测井资料计算了各个深度上静负载应力。

Research on Similarity Simulation Experiment of Development Law of Mining-induced Overburden Stress

采动覆岩应力发展规律的相似模拟实验研究