以窑沟橄榄辉石角闪石岩岩体为代表，研究了涞源岩基中超镁铁质岩石。
This paper chooses the Yaogou hornblendite body, one of the two major ultramafic outcrops in the Laiyuan batholith, as a representative to carry out detailed research.
两年前，北京慈济人前往距离北京两百多公里的保定市涞源县进行长期援助；
Two years ago, Beijing Tzu Chi volunteers started to provide long-term support to villagers in Laiyuan County which is over 200 kilometers away from China's capital.
涞源县矿产已查明的有金属、非金属矿43种，矿点160个，具有一定开采价值。
Laiyuan County minerals have been identified are metals, non-metallic minerals 43, 160 occurrence, the exploitation of a certain value.
铁路有京原铁路，每天有三对常规列车通过，一对旅游专列空调车往返于北京—涞源之间。
Beijing railway has the original railway, every day through three pairs of conventional trains, a pair of train travel round-trip air-conditioned car in Beijing - brook sources.
全县人口27万人。农业、矿业、旅游业是涞源县的三大产业，目前旅游业成为县重点培植的支柱产业。
County population of 270,000 people. Agriculture, mining, tourism is Laiyuan county's three major industries, tourism has become the current focus on nurturing the county's pillar industries.
涞源县植被属华北植物区系，现有植被大部分为灌草丛，其次是天然次生林和人工林，森林覆盖率为18.24%。
Vegetation is Laiyuan County of North China flora, the majority of existing vegetation for irrigation in the bushes, followed by natural secondary forest and plantation, forest coverage is 18.24%.
涞源县植被属华北植物区系，现有植被大部分为灌草丛，其次是天然次生林和人工林，森林覆盖率为18.24%。
Vegetation is Laiyuan County of North China flora, the majority of existing vegetation for irrigation in the bushes, followed by natural secondary forest and plantation, forest coverage is 18.24%.
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