ohp

please turn on the ohp so we can start the presentation.

the teacher used the ohp to display the diagrams.

make sure the ohp is properly focused before projecting.

we need to replace the bulb in the ohp.

the ohp screen needs to be cleaned.

can you connect the laptop to the ohp?

the conference room is equipped with a modern ohp.

write the key points on the ohp transparency.

adjust the ohp angle for better visibility.

the ohp makes it easy to annotate during lectures.

store the ohp transparencies in this folder.

dim the lights when using the ohp.