“Jones riffle”的概念、定义、翻译、参考文献-科学参考

单词	Jones riffle
释义	Jones riffle [`jōnz ´rif·ǝl] ^{MINING ENGINEERING} An apparatus used to reduce the size of a sample to a desired weight; consists of a hopper which passes samples to a series of open-bottom pockets, each of which divides the sample into two equal parts, and the next pass of each part gives a quarter of the original sample, and so on until the desired sample is obtained.
随便看	glacial erosion glacial flour glacial flow glacial geology glacial high glacial ice glacial lake glacial lobe glacial maximum glacial mill glacial outwash glacial period glacial plucking glacial retreat glacial scour glacial striae glacial till glacial trough glacial varve glaciated terrain glaciation glaciation limit glacier glacieret glacier flow

科学参考收录了103327条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。