OHP 名词 英
OHP → overhead projector
overhead projector 名词
单语范例（未经PONS编辑处理）
Opaque projectors are not as common as the overhead projector.
en.wikipedia.org After the composition is decided upon, he transfers it to the painting surface either by scaling the design and doing a grid transfer or with an overhead projector.
en.wikipedia.org Historically, a slide was created on a transparency and viewed with an overhead projector.
en.wikipedia.org It is designed for overhead projector use.
en.wikipedia.org The opaque projector is a predecessor to the overhead projector.
en.wikipedia.org