The Lancangjiang metallogenic belt in western Yunnan is an important magmatic, metamorphic and tectonic mobilezone of Southwestern China, whose geotectonic location is very unique.
滇西澜沧江成矿带是我国西南一条重要的岩浆—变质—构造活动带，大地构造位置极为独特。
2
HF radio communication has a significant communication blind zone in the range of 200 kilometers usually. This disadvantage restricts its application in the near range tactical mobile communication.
短波无线电通信在200公里范围内通常存在着盲区，这一特点制约了其在近距机动通信中的应用。
3
The uranium deposits (occurrences) are regularly distributed along the mobile fault zone of the periphery of mantle upwelling.