But for turbines above 1 MW they also started to take variable speed because of problems they had with the gearboxes.
但是对于1兆瓦以上的风电设备，由于齿轮箱设计的问题，他们也开始采用变速方案。
They also started "Beyond the Ring," an afterschool program which teaches kids clowning, acrobatics and juggling.
他们还开展了“马戏团之外”的课外计划，教孩子们扮演小丑、体操和戏法。
They also started "Beyond the Ring," an afterschool program which teaches kids clowning, acrobatics and juggling.
他们还开展了“马戏团之外”的课外计划，教孩子们扮演小丑、体操和戏法。
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