| 摘要 |
<p>An apparatus includes a first set (42) of blades and a second set (44) of blades disposed downstream relative to the first set of blades. The first set (42) of blades includes a first subset (46) of blades, wherein each blade among the first subset (46) of blades comprises one or more first geometric parameters (56, 58, 60, 62). The second set (44) of blades includes a second subset (48) of blades, wherein each blade among the second subset (48) of blades comprises one or more second geometric parameters (66, 68, 70, 72) different from the one or more first geometric parameters.</p> |
