The divider leaves an open, unobstructed space which provides a region with little friction against water movement.
Here he applied the concept of an unobstructed space that is flexible for use by people.
The transformer must have at least 8 feet of unobstructed space in front for the doors to the electrical equipment to open.
Where there are three seats in the row, the unobstructed space must be 20 inches unless the seat next to the window has been removed.
The width of this unobstructed space in regular rows in coach sections of airplanes at present is usually 6 inches.
It was unbroken, unobstructed space, even if unlit, and he was facing it.
Kings move like a queen in chess (any number of unobstructed spaces in any direction).
A motion detector can be put anywhere there is unobstructed space between it and the location you wish to monitor.
The antennas are in unobstructed free space, with no multipath.
The elegant design, with its unobstructed space for the spreading crowns of the tall palms, was a perfect marriage of form and function.