Whoever shot it down couldn't have known whether there were people on board, not without sensors.

"We couldn't be positive, of course, not without sensors such as yours."

Without active sensors, we'll have to be very careful about plotting any course.

Without sensors we are limited to what we can see on the main screen.

With or without sensors, we can still use our eyes.

They couldn't see the eruption without sensors, of course.

Without sensors there would be no warning if the tunnel collapsed about them.

But without a fully operational communications system or sensors, there was no way to tell.

Without good sensors, we're just not going to see him.

With or without sensors, a fan's energy appetite is small, about the same as a 25-to-100-watt bulb's.