The tradeoff for this effectiveness is a higher loss coefficient, as shown in Table 7-2.1, in which the loss coefficient is the unrecoverable portion of the upstream dynamic pressure of the flow.
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- 这种高效所换来的是一个很高的损失系数,如表7-2.;1所示,在其中损失系数是水流中不可弥补的上升流动态压力。