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Rare earth elements are a group of 17 chemical elements that occur together in the periodic table ... Have high melting and boiling points ... consumption of precious rare earth elements, as well as spur development of new technologies, ...www.deq.state.or.us/.../Bri...
读音:英[mænjʊ'fæktʃə] 美['mænjə'fæktʃɚ] manufacture 基本解释 n. 产品, 制造 vt. 制造, 假造 vi. 制造 manufacture 网络释义 n. 制造;产品;制造业 vt. 制造;加工;捏造 vi. 制造 manufacture 词性变化 过去分词:manufactured 第三人称单数:manufactures 现在分词:manufacturin...
Clutch Release Bearing NJ1043(54RCT3538F2),china truck spare parts $5.00 - $8.00/Piece Clutch Release Bearing MSB-5M(60RCT3525F0),china truck spare parts $5.00 - $8.00/Piece Clutch Release Bearing LC6T46(81CT4846F2-01),china truck spare parts $5.00 - $8.00/Piece Clutch Release ...
PE Hart,MEMBER,IEEE,NJ Nilsson,MEMBER 摘要: Although the problem of determining the minimum cost path through a graph arises naturally in a number of interesting applications, there has been no underlying theory to guide the development of efficient search procedures. Moreover, there is no ...
Planets similarmasses radiican take differentcompositions, ranging AstrophysicalSciences, Peyton Hall, Princeton University, Princeton, NJ 08544, USA; arhowe@astro.princeton.edu, burrows@astro.princeton.edu from thickH/He layer truesuper-Earth composed mostly high-molecular-weightatmosphere “waterworld...
- 《Journal of the American Chemical Society》 被引量: 375发表: 2009年 Validation of the Distress Thermometer with bone marrow transplant patients. The Distress Thermometer (DT) is a one-item screening measure of psychological distress in cancer patients. This study examines the operating character...
1921年另设立工程和应用科学学院 (the school of engineeringand applied science) ,其下共设有五个系,分别是化工系 (chemical engineering) 、电机系 (electrical engineering) ,土木工程和作业研究系 (civil engineering & operation research) ,计算机科学系 (computer science) 以及机械航空工程系 (mechanical and ...
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WARNING: The wire and metal parts of this product can expose you to lead, a chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. This warning is posted because of the legal requirements of the State of California. For more informat...