英语词汇focus lock怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

1
Fourth version 1969-1979 Black lens with no "50" on barrel, no focusing lock or lever.
第四版1969 - 1979，黑色镜筒上没有“50”字样，没有对焦锁和把手。
2
Two test methods, both test on boundary scan and test-by-divider, are described in details, especially focusing on the maximum output frequency, the range of output frequency and the time to lock.
分别给出了边界扫描测试和分频器测试两种测试方案，并对两种方案进行了比较，指出了各自的适用范围。

单词	focus lock
释义	focus lock 简明释义焦距锁定双语例句 1 Fourth version 1969-1979 Black lens with no "50" on barrel, no focusing lock or lever. 第四版1969 - 1979，黑色镜筒上没有“50”字样，没有对焦锁和把手。 2 Two test methods, both test on boundary scan and test-by-divider, are described in details, especially focusing on the maximum output frequency, the range of output frequency and the time to lock. 分别给出了边界扫描测试和分频器测试两种测试方案，并对两种方案进行了比较，指出了各自的适用范围。
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