Assured clear distance ahead 安全间距
eye clear distance 眼点净距离
clear distance betwoen uprights 立柱净空距
lateral clear distance 视距横净距
The symptoms are usually temporary and clear distance vision may return after resting the eyes.
但这种症状只是暂时的,在经过充分休息之后,眼镜就可以重新看到远处清晰的事物了。
There are a great many of tunnels in high-grade highway, it is necessary to adopt the small clear distance tunnel.
小净距隧道的主要特点是比分离式隧道占地少,比连拱式隧道造价低,造型美观;但施工难度大,技术含量高。
Determining where a distant object lies in space takes a bit of work, because the universe lacks clear distance markers.
由于宇宙中缺少明显的距离标识,在空间中确定一个遥远的物体的位置需要大量的工作。
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