罗盘表 watch compass 磁盘 (magnetic) disc [disk]◇磁盘编辑 disk edit; 磁盘操作系统 disk operating system; 磁盘磁道 disk ..
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Watch Your Compass 观察指南针
The watch features a removable compass that, when used with the scratch-resistant mirror and the compass’s reflective surface, can give any Boy Scout the tools to find his way home.
这款手表的特色在于装了个可移动的指南针,使用手表防刮的镜面和指南针的反射表面能够帮任何一个童子军找到回家的路。
He was not against modern instruments on principle. A compass could occasionally be useful in daylight; and, at least in old age, he wore a chunky watch.
在那一个月的航行里,他没有带指南针,没有六分仪,也没有任何图纸,他并不是个反对使用现代仪器的人,白天里指南针偶尔也能用下,年纪大的时候他也开始戴个笨笨的手表。
Take celestial azimuth and find compass error on each watch if the weather is fine.
如天气好,每一班测取天体方位求出罗经差。
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