The annual imp. & exp. value registered an increase of 31.5% over the previous year, amounting to USD 474.3 billion: USD 249.2 billion of exp. (increased by 27.8%) and USD 225.1 billion of imp. (up 35.8%). The imp...The annual imp. & exp. value registered an increase of 31.5% over the previous year, amounting to USD 474.3 billion: USD 249.2 billion of exp. (increased by 27.8%) and USD 225.1 billion of imp. (up 35.8%). The imp.& exp.value of mechanic & electronic products reached USD 208.2 billion, an increase of 34.7%: USD 102.9 billion in imp. (increased by 32.6%) and USD 105.3 billion in exp. (increased by 36.9% up to 42.3% of展开更多
The present paper deals with ten new species and one new record species of the Genus Bibio Geoffroy from China. The type specimens are kept in the Insect Collections of Beijing Agricultural University. 1. Bibio parvis...The present paper deals with ten new species and one new record species of the Genus Bibio Geoffroy from China. The type specimens are kept in the Insect Collections of Beijing Agricultural University. 1. Bibio parvispinalis, sp. nov. (fig, 1) This new species is very similar to B. tenebrosus Coquilletti, but can be distinguished from the latter by the antenna 12-segmented, the last segment of palpi two times longe than wide, the spina of the front tibia rather sharp pointed, the tergum 9 of the展开更多
Through more than two months of trial operation,a heat recovery system, called broad-sense heatrecovery system, was put into operation in Shanghai Waigaoqiao Third Power Generation Corporation
文摘The annual imp. & exp. value registered an increase of 31.5% over the previous year, amounting to USD 474.3 billion: USD 249.2 billion of exp. (increased by 27.8%) and USD 225.1 billion of imp. (up 35.8%). The imp.& exp.value of mechanic & electronic products reached USD 208.2 billion, an increase of 34.7%: USD 102.9 billion in imp. (increased by 32.6%) and USD 105.3 billion in exp. (increased by 36.9% up to 42.3% of
文摘The present paper deals with ten new species and one new record species of the Genus Bibio Geoffroy from China. The type specimens are kept in the Insect Collections of Beijing Agricultural University. 1. Bibio parvispinalis, sp. nov. (fig, 1) This new species is very similar to B. tenebrosus Coquilletti, but can be distinguished from the latter by the antenna 12-segmented, the last segment of palpi two times longe than wide, the spina of the front tibia rather sharp pointed, the tergum 9 of the
文摘Through more than two months of trial operation,a heat recovery system, called broad-sense heatrecovery system, was put into operation in Shanghai Waigaoqiao Third Power Generation Corporation
