Remote sensing in ultraviolet and vacuum ultraviolet can help us recognize many spatial phenomenon , such as dayside and nightside airglow , aurora . so it ' s very important 因此,紫外-真空紫外波段的空間遙感探測(cè)對(duì)認(rèn)識(shí)太陽(yáng)和地球大氣以及宇宙空間具有重要的應(yīng)用價(jià)值。
With the accelerate impelling of the economy globalization and the tide of the revolution of the new technology in the step - term of the 20 century , the cluster mode and the mechanism of the new times different from the tradition cluster . and cluster is a kind of spatial phenomena of the typical economy function that is one of the most important contents that studied by economists and geographers 20世紀(jì)后期,隨著經(jīng)濟(jì)全球化和新技術(shù)革命浪潮的加速推進(jìn),新時(shí)期的企業(yè)集聚方式和動(dòng)力機(jī)制,與傳統(tǒng)意義上的集聚有了很大不同,而企業(yè)集群作為一種典型的經(jīng)濟(jì)活動(dòng)空間現(xiàn)象便成為了經(jīng)濟(jì)學(xué)家和地理學(xué)家們研究的重要內(nèi)容之一。