“spiral”的概念、定义、翻译、参考文献-科学参考

单词	spiral
释义	spiral [`spī·rǝl] ^MATHEMATICS A simple curve in the plane which continuously winds about itself either into some point or out from some point.
随便看	PKU Pl PL/1 PLA placanticline place placebo placeholder placenta placenta accreta placental barrier placentation placer placer claim placer dredge placer location placer mining place value placic horizon placode Placodermi Placodontia Placothuriidae plage Plaggept

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。