求翻译：在离心压缩机基本级的损失预估时，应较全面考虑叶轮、扩压器等各个元件中的所有流动损失，并建立损失模型，如：叶片表面摩擦损失、叶片载荷损失、间隙损失、尾迹混流损失、回流损失以及扩压器内流动损失等。是什么意思？

Basic level in the centrifugal compressor loss estimates should be more comprehensive consideration impeller, diffuser and other components, all of the flow of losses and establish loss model, such as: loss of leaf surface friction, blade load losses, the gap loss, wake mixed loss, return loss and d

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Estimates when the centrifugal compressor basic shell loss, should consider comprehensively the impeller, the diffuser and so on in each part all flowing lose, and establishes the loss model, for example: The leaf blade surface friction loses, the leaf blade load loses, the gap loses, the contrail i

In centrifugal compressor when losses estimated at basic level, should be fully taken into account, diffuser, and various other components of the impeller in the loss of all mobile and establishing loss model, such as leaves of leaf surface friction losses, loss of loads, gap, wake flow loss, return

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