frontier area造句怎么写

The establishment of frontier ports and the healthy and rapid development of the frontier trade have promoted the process of urbanization in frontier areas.

Historically, some frontier areas have been under the rule of local ethnic regimes for quite a long time.

The two sides should make joint efforts to ensure tranquility and stability in the frontier area.

Historically, it was a frontier area where the ethnic groups of Nuzhen and Manchu lived.

Throughout the whole Qing Dynasty, the Aihui garrison eight banners had played essential role in the development of northeastern frontier area.

The second part discusses the supply of the garrison system's provisions. It chiefly states the transporting provisions to the northwest frontier area, the production of the garrison system ,purchasing actions of the army and by-products' supplement.

At the same time, Arai said that even in the peaceful times, we should pay attention to the frontier areas.

There is an ecology corridor for Amur tiger migration in Sino-Russia frontier area near Ussuri river of eastern Wanda Mountain area.

According to historical records, all the dynasties in Chinese history adopted the practice of stationing troops to cultivate and guard frontier areas as an important state policy for developing border areas and consolidating frontier defense.

The frontier area of minority nationalities provides an important protective screen for national unity and security, and the state economic construction and the reform and opening up.

The line or frontier area separating political divisions or geographic regions; a boundary.