The drop forging hydraulicpressure confidential USES the mold, but the free forging hydraulic press does not use the mold.
模锻水压机要用模具，而自由锻水压机不用模具。
2
The theoretical analyses show that the rotating speed of hydraulic turbine and the pressuredrop increase while the flowing velocity increases.
理论分析表明，液轮机的转速随着流体流速的增加而增大，同时流体阻力降也增大。
3
The size impact of narrow side on thermal hydraulic behaviors of rectangular channel (pressuredrop and CHF) has been evaluated quantitatively in this paper, as a given fuel element as reference.