An unobstructed kick of a stationary ball, as in soccer, especially one awarded when the opposition commits a foul.在足球比赛中，当一方球员犯规时，另一方踢罚的无阻挡的定位球。
Coated waterway in the seat area is smooth,free of cavities and unobstructed thru port to maximize flow.阀体流道上无凹槽且光滑，同类产品中其流阻最小。
Exits should be unblocked(from the inside), unobstructed and well marked. The exit door should push to open, not pull to紧急出口需保持畅通,不得有任何阻挡/阻塞,且明显标示.紧急出口门必须是推开,而不是拉开.
Researchers at the Florida Institute for Human and Machine Cognition envision their work giving Army Rangers 360-degree 佛罗里达人与机械认知研究所的研究人员设想他们能够将科幻变为现实－－为陆军突击队员提供夜间360度全方位无阻碍的感知；使在水下的海豹特种部队用他们的脑袋来感觉到声波，同时不会丢失普通的感觉。
The Inner Ring Road, Middle Ring Road, and Outer Ring Road go through the District; with the completion of Rail Transit 市内内环线、中环线、外环线穿境而过，地铁7号线、11号线和轨道三号线等交通设施的建成，基本形成了立体便捷通畅的道路网络框架。