closer object meaning in Chinese

近距离物体

Closing objects when not in use
>在不使用时关闭对象
Closing objects is particularly crucial to maintaining good concurrency on the server when you are using scroll locks
当使用滚动锁定时，关闭对象对维护服务器上良好的并发功能尤其重要。
Light rays focus behind the retina and closed objects look blurred . the main symptom is difficulty in seeing near objects
当观看近景甚至是远物时，影像便被投射到视网膜后，所以亦会令我们看到模糊不清的影像。