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美国远景主型内燃机车是轴重为28～30吨的3600马力四轴内燃机车。美国专家认为:如果粘着系数还停留在目前的0.18～0.20水平上,而不能稳步提高到0.23的话,则进一步提高单
The United States long-range main diesel locomotive is a 3600 horsepower four-axle diesel locomotive with a shaft weight of 28-30 tons. US experts think: If the sticking coefficient still stays in the current level of 0.18 ~ 0.20, but can not be steadily increased to 0.23, then further improve the single