timing area（计时区）是什么意思？音标发音+图解场景

计时区 /ˈtaɪmɪŋ ˈeəɹiə/ n

English: timing area · 计时区

释义：Part of the track where the speed skier’s speed is calculated; two photoelectric cells placed 100 m apart measure time in milliseconds.

这个词出现在以下图解场景（1）