trapezoidal rule calling sequence parameters description examples calling sequence approximateint f x , x = a .. b , method = trapezoid, opts .
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got ce and national patent certificate, trapezium grinding mill got good reputation with our customers . metallurgy,building materials,chemical and mining .
through continuous exploration and research, combined with past experience, we have developed a variety of mining machinery and equipment, and there are a .
uptime focused. supplying the mining and tunneling industries with new and quality rebuilt underground equipment for almost 40 years.
the field measurement of mining roadway surrounding rock displacement in . of arched-top trapezoid and the equipment condition in zouzhuang coal mine, the .
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. 2000, with the sofi instrument at the eso 3.5-m new technology telescope ntt at la silla. . the central group of bright stars is the famous 'trapezium' .
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