边界 | [边 界 / 邊 界] boundary; border #6,880 [Add to Longdo] |
边界线 | [边 界 线 / 邊 界 線] boundary line; border line #51,357 [Add to Longdo] |
边界层 | [边 界 层 / 邊 界 層] boundary layer #95,538 [Add to Longdo] |
中俄边界协议 | [中 俄 边 界 协 议 / 中 俄 邊 界 協 議] Sino-Russian Border Agreement of 1991 [Add to Longdo] |