Nominal value scale and the order can not be the arithmetic scale hydraulic power source of the motor, but the value scale spacing can be addition and subtraction. However, the hydraulic motor repair, since the origin is arbitrary, it is not multiplication and division. For example, the difference between 5 ℃ and 10 ℃, can be said between 15 ℃ and 20 ℃ difference is the same, are 5 ° C. But I can not say 20 ℃ is more than 5 ℃ 4 times higher temperatures. Meaning the ratio scale is absolute, meaning that it has a "no" amount of the origin 0. Length, weight and time are measured by the ratio of the scale range. The difference between the measured value and scale-ratio are comparable. For example: the difference and the difference between 10 minutes and 15 minutes of between 5 minutes and 10 minutes are 5 minutes, 10 minutes 5 times 2 minutes. The ratio of scale can be arithmetic operations. Different analytical methods have their own different characteristics and performance, but all have one thing in common, that they are generally controlled by comparison to analyze and explain the problem. It is through the same or a different period indicators compare various indicators of control was reflected in the number of how many, the quality of the pros and cons, the level of efficiency, the size of consumption, the pace of development, etc., in order to make identification, the result of decision provide conclusive evidence of information. Hydraulic motor sales | hydraulic motors | hydraulic factory direct crystal hit by the Jinan Jing Chong Hydraulic Machinery Limited. Jinan Jing Chong Hydraulic Machinery Co., Ltd. (www.jnjcyy.com) (www.jnjcyy.com) strong, credible, in Jinan, Shandong mining machinery industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead crystal create hydraulic and you hand into the brilliant, for a better future!