It allows us to compress the distance between the projector and the screen.
这样我们就可以把投影设备和投影屏幕的距离拉近。
The size of the image can be adjusted simply by modifying the distance between the projector and the projection surface; the resulting image remains uniformly clear.
通过改变投影仪和投影片表面的距离，图像大小也能做简单的调整，调整后的画面仍然保持清晰。
Another advantage is that the pictures the overhead projector shows are large and bright owing to the short distance between the projector and the screen.
投影仪的另一个优点在于它投出的影像大而明亮，这是由于投影仪和银幕之间距离较近的缘故。
You get the most light output from this projector when the lamp power is set to high, and the zoom lens is set to maximum wide angle (shortest throw distance for any given image size).
您得到光输出从这台放映机当灯力量被设置对上流，并且变焦镜头被设置对最大广角（最短的投掷距离为任何指定的图像大小） 。
Kunshan Dihong precision products CO. , LTD professional sales and service: Ultra-short throwing distance reflection projector accessories, Welcome to contact us.
供应反射式投影机/光机/镜头：昆山迪鸿精密制品有限公司专业销售与服务：反射式超短焦投影机配件，欢迎来电联系。
Kunshan Dihong precision products CO. , LTD professional sales and service: Ultra-short throwing distance reflection projector accessories, Welcome to contact us.
供应反射式投影机/光机/镜头：昆山迪鸿精密制品有限公司专业销售与服务：反射式超短焦投影机配件，欢迎来电联系。
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