According to foreign media reports, in March, an Uber self-driving vehicle collided with a pedestrian in Arizona and caused its death. In response to the request for public records, on June 21, local time, the Tempe City Police issued a 318-page report showing evidence that the Uber’s â€
I. Overview 116'6-3 mining coal caving face needs to be forced, in order to ensure security force roof process, especially the preparation of the following measures. Second, special support and back column 1. The working surface is supported by a hinged top beam and a single hydraulic prop. T
The bucket elevator uses the friction between the hopper belt and the head wheel drive shaft to lift the material. If the hopper belt tension is insufficient, the hopper belt will slip. At this time, stop immediately and adjust the tensioning device to tighten the hopper belt. If the tensioning devi
Under the same conditions, the mechanical flagship brand X and the all-hydraulic flagship brand Trinity will come to a smoke-free contest. The video clearly shows that the Trinity hydraulic roller has thrown away the mechanical X brand for at least 10 seconds. The term "Maserati" for mach
Production excavation Safety measures for working surface grinding I. Overview of the working surface (with a schematic diagram of the working surface) Second, the construction method Tilt length 2. According to the actual situation, the adjustment ratio Third, safety technical measures 1. Ch
Mineral processing production line introduction The ore dressing production line consists of the main beneficiation equipment such as jaw crusher , ball mill , classifier, magnetic separator, flotation machine, thickener and dryer. It can be combined with auxiliary ore dressing machinery such as or
Blasting operation "one shot three inspections" and "three-person chain blasting" system [Procedures] The 347th underground blasting work must be performed by a full-time blaster. Outburst coal blasting mining face layer must serve full-time fixed by the blasting work. The blast
Today's Chinese manufacturing has gradually gained the right to speak in various fields, even in some of the most sophisticated technologies. Chinese products have become a force that cannot be ignored. Domestically produced large aircraft, domestic aircraft carriers, high-speed railways, and
In recent days, Datong Company won the title of "2016-2017 Shanxi Province Civilized Unit Modeling" in the 2016-2017 year of advanced recognition for the establishment of spiritual civilization in Shanxi Province. Dajiao won the title of “2016-2017 Shanxi Province Civilized
To drive your own car to run a business, this should be a dream that many card lovers have ever had. Not so much pressure, will not be oppressed by the boss, one person a car to achieve a preliminary business dream. You can count yourself as the boss. However, the road to a dream is a bumpy
First, the laying of cables and basic requirements The laying methods of cables generally include direct laying, cable trench laying, cable tunnel laying, pipe laying and overhead laying. Among them, there are two kinds of cable trenches: ordinary cable trenches and sand-filled cable trenches. Ov
The profit of many new energy battery listed companies plummeted Recently, new energy vehicle power lithium battery companies have released 2017 annual performance reports. The Beijing News reporter sorted out 18 power lithium battery companies and found that due to the continuous expansion of de