However, determining the traveling route of both collector and mining ship is a difficult problem on deep sea mining.

但确定集矿机与采矿船的行走路线是深海采矿的难题。

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The characteristics of digital microwave communication network are introduced, the route diagram of Fenxi mining bureau is presented, and some improving opinions are put forward.

阐述了数字微波无线通信网的特点，同时介绍了汾西矿务局数字微波通信网路由图，并提出了改进建议。

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Usually one route is more direct than the other, and if a mining company has sidings and a branch line linked to one railroad it cannot quickly and easily switch to another.

ECONOMIST: American railways

Plan Nord infrastructure development includes as a key focus extending provincial highway route 167 into the Otish Mountains, a move that is seen as a positive step for the development of mining in Quebec.

FORBES: Plan Nord's Extension of Route 167 Key for Mining in Northern Quebec: Stornoway CEO