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一、露天开採 过去十年中,露天开采的设备曾急剧地增大,其继续发展的趋势也很明显。首先采用至25立碼电鏟,24立碼前端式装载机和200吨级的汽车。若再加大设备,则需发展更大的发动机,更大的、强度更高的轮胎,更好的制动器,液压装置和改进其他精密另件。当前对尺寸加以限制是为了使以后整个工业处于一个自然的平稳状态,在近十年内力求降低生产费用。现在似乎觉得,电鏟、前端式装载机达到50吨,汽车达到500吨,刮土机达到200碼,是不合理的。
First, the open-pit mining In the past ten years, open-pit mining equipment has dramatically increased, and its continued development trend is also very clear. First up to a 25-yard shovel, a 24-yard front-end loader and a 200-tonne car. If you re-equipment, you need to develop larger engines, larger, stronger tires, better brakes, hydraulic devices and improve other precision parts. The current size limit is to make the entire industry in a natural and steady state in the past decade to reduce production costs. Now it seems that shovel, front loader reached 50 tons, the car reached 500 tons, scraper reached 200 yards, is unreasonable.