The song plays during the closing sequence of Michael Jackson's film of the same name and will be included on a companion 2-disc CD set.
这首单曲将作为杰克逊电影《This is It》的片尾曲，并收录进杰克逊的双cd套装专辑。
It features a primary check valve utilizing a rubber disc seating against a mating rubber part to ensure tight closing.
其特点在于第一止回阀采用一个橡胶阀瓣密合在相配的橡胶部件上，确保紧密的关闭。
Gate valves are offered in two designs: Parallel Disc and Flexible Wedge. Parallel Disc are position seated; Flexible Wedge are torque seated when closing.
我们提供的闸阀的结构形式具有两种：平行阀瓣和弹性楔形闸板。平行阀瓣为定位阀座密封；弹性楔形闸板在关闭时则是扭矩阀座密封。
This case has more advanced anterior disc displacement with clicking sounds in opening and closing.
这个病例关节盘前移位较重，张闭口时有弹响。
When the disc is opened, with the springs at work, the strut rotates to an Angle so as to prop up the disc and keep it from closing.
阀瓣打开后，压杆在弹簧作用下旋转一定角度支住阀瓣，使其不能关闭。
When the disc is opened, with the springs at work, the strut rotates to an Angle so as to prop up the disc and keep it from closing.
阀瓣打开后，压杆在弹簧作用下旋转一定角度支住阀瓣，使其不能关闭。
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