Flow measurement is an important means for using water according to plan and charging according to water quantity in irrigation district.
灌区量水是灌区实行计划用水、按方收费的重要手段。
Directed at fire prevention in goaf, the paper proposes a method of injecting nitrogen and controlling nitrogen air to flow direction using fugitive air and controlling air quantity in gob.
为解决采空区防火问题，提出从采空区漏入风一侧顺流注氮，充分利用采空区漏风流向控制氮气的流向并控制漏风量的注氮思路。
In the evaluation of heat flow, the quantity of heat in each position of the torque tube has been determined using FEM (finite element method).
在对热流的估算中，力矩管上每个位置的热量是通过有限元法计算获得的。
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