The shroud or wrap (14) is positioned adjacent the first body portion (24) and has a peripheral extent at least equal to the peripheral extent of the balloon flexure region (24).

邻接第一主体部分(24)设置并且具有外围延伸的覆盖物或包裹物(14)。所述外围延伸至少等于气球挠性区域(24)的外围延伸。

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The actuator (10) includes an inflatable balloon (12) and a shroud or wrap (14).

所述致动器(10)包括可充气的气球(12)和覆盖物或包裹物(14)。

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