| 摘要 |
<p>In one embodiment, a system includes a seal (58) having a first sealing end portion (60), a second sealing end portion (62), and an intermediate portion (58) between the first and second sealing end portions (60,62), wherein the seal (50) has at least one metering hole (51) configured to control a leakage flow across the seal (50).</p> |
