“boundary marker”可以造什么句,boundary marker造句
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2、A similar pin forming a projection that may be used as a support or boundary marker.
1、Studies in bounds of undecided boundary of River Uda and boundary marker in Sino-Russian Treaty of Nerchinsk;
3、The boundary marker stands on a stone ridge, like a solid sentry, gazing at the mountains and rivers along the border between China and Vietnam.