THERE is no such thing as steamlined but there is streamlined it is because to reduce resistance of the air and water to use less energy e.g fuel
To run fast through thick vegetation.
definetly cruise ships.
Yes , for example container ships .
Aerodynamics!
it means to pass through
radar
There are thousands of signs.
It is the manufacture of airplanes and space ships.
Autos, airplanes and ships.
Ships, cars, airplanes
Airplanes move through the air in a similar fashion to the way boats move through the water.
Depression contour line