1.   For a fee, which was probably pocketed, utility workers installed this plug so street vendors could have access to electricity.

2.   For example, American is touting the fact that it plans to install power plugs for laptop computers in both first class and coach in many planes.

3.   Install the plug and tighten it by hand .

4.   Install outlet plugs in unused outlets.

5.   To cope with defective tubes, technicians can install plugs or insert liners inside them to cover the defective portion.