博物馆外面到处都是人，有轮滑的、练武术的、放风筝的、在周围坐着的。他们真是知道如何享受这个公园。
一些驾车者对“轮滑交警”表示欢迎，并认为这是一项省时的举措，但另有一些人认为交警的职责不仅是疏解交通，还应该打击那些引发交通拥堵的违规驾驶行为。
Some motorists welcomed the rollerblading officers as a time-saving solution, but others said the police needed to crack down on the bad driving that causes the jams rather than just resolve them.
新和体育下设有索牌羽毛球俱乐部、轮滑俱乐部、健身俱乐部，会员数量达数百人，定期举办各种体育活动。
And sports under the new cable card equipped with badminton club, skating club, health club, hundreds of people the number of Members, a variety of sports activities are organized regularly.
首先，分析一类两轮移动机器人的运动学模型和动力学模型，针对其轨迹跟踪控制问题，设计滑模控制器。
Firstly, a kind of kinematics model of two-wheel driven mobile robot is analyzed. Aimed at its trajectory tracking control problem, the sliding-mode controller is designed.
轮滑运动时从滑冰运动过渡而来，据有关资料记载，轮滑在十八世纪由不知名的荷兰人发明的。
Roller skating was developed from ice skating. Based on related information, roller skating was invented by an unknown Dutch in the 18th century.
轮滑运动时从滑冰运动过渡而来，据有关资料记载，轮滑在十八世纪由不知名的荷兰人发明的。
Roller skating was developed from ice skating. Based on related information, roller skating was invented by an unknown Dutch in the 18th century.
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