Information on the organic compounds in water of Mochou Lake and Heart Lake, Antarctica is given in this paper. 93 organic compounds were identified from 121 chemical constituents in lake water, including n-alkanes, l...Information on the organic compounds in water of Mochou Lake and Heart Lake, Antarctica is given in this paper. 93 organic compounds were identified from 121 chemical constituents in lake water, including n-alkanes, lipidal isopentadienes, aromatic hydrocarbons, polycyclic aromatics, alcohols, aldehydes, ketones, esters, monocarboxylic acids and phthalic esters in the range of 0. 027~4. 97 μg/L. Organic compounds of global occurrence like BHC, DDT and PCBs were detected in the water,at the concentration of 0. 012~0. 356 μg/L.展开更多
Information on the organic compounds in water of Mochou Lake and Heart Lake, Antarctica is given in this paper. 93 organic compounds were identified from 121 chemical constituents in lake water, including n alkanes,...Information on the organic compounds in water of Mochou Lake and Heart Lake, Antarctica is given in this paper. 93 organic compounds were identified from 121 chemical constituents in lake water, including n alkanes, lipidal isopentadienes, aromatic hydrocarbons, polycyclic aromatics, alcohols, aldehydes, ketones, esters, monocarboxylic acids and phthalic esters in the range of 0.0274.79 μg/L. Organic compounds of global occurrence like BHC, DDT and PCBs were detected in the water, at the concentration of 0.0120.356 μg/L.展开更多
我厂采用美国麦克拉肯 PH—48立式挤压振动制管机生产的承插式 O 型胶圈密封的钢筋砼排水管已经通过产品鉴定,并已批量生产供应上海重点工程。使用的结果证明,这种接口型式的管子具有良好的经济效益。一、产品设计产品型式和几何尺寸按...我厂采用美国麦克拉肯 PH—48立式挤压振动制管机生产的承插式 O 型胶圈密封的钢筋砼排水管已经通过产品鉴定,并已批量生产供应上海重点工程。使用的结果证明,这种接口型式的管子具有良好的经济效益。一、产品设计产品型式和几何尺寸按美国标准设计,结构按上海地区要求设计。接口型式和细部要求如图1所示。管壁厚度与内径之比(规格由小到大)为0.125~0.104,管子设计外压荷载和内水压如表1。管基为90°土弧基础。地面荷载汽—20。展开更多
文摘Information on the organic compounds in water of Mochou Lake and Heart Lake, Antarctica is given in this paper. 93 organic compounds were identified from 121 chemical constituents in lake water, including n-alkanes, lipidal isopentadienes, aromatic hydrocarbons, polycyclic aromatics, alcohols, aldehydes, ketones, esters, monocarboxylic acids and phthalic esters in the range of 0. 027~4. 97 μg/L. Organic compounds of global occurrence like BHC, DDT and PCBs were detected in the water,at the concentration of 0. 012~0. 356 μg/L.
文摘Information on the organic compounds in water of Mochou Lake and Heart Lake, Antarctica is given in this paper. 93 organic compounds were identified from 121 chemical constituents in lake water, including n alkanes, lipidal isopentadienes, aromatic hydrocarbons, polycyclic aromatics, alcohols, aldehydes, ketones, esters, monocarboxylic acids and phthalic esters in the range of 0.0274.79 μg/L. Organic compounds of global occurrence like BHC, DDT and PCBs were detected in the water, at the concentration of 0.0120.356 μg/L.
文摘我厂采用美国麦克拉肯 PH—48立式挤压振动制管机生产的承插式 O 型胶圈密封的钢筋砼排水管已经通过产品鉴定,并已批量生产供应上海重点工程。使用的结果证明,这种接口型式的管子具有良好的经济效益。一、产品设计产品型式和几何尺寸按美国标准设计,结构按上海地区要求设计。接口型式和细部要求如图1所示。管壁厚度与内径之比(规格由小到大)为0.125~0.104,管子设计外压荷载和内水压如表1。管基为90°土弧基础。地面荷载汽—20。