“Ponta Delgada”的概念、定义、翻译、参考文献-科学参考

单词	Ponta Delgada
释义	Ponta Delgada Encyclopedia 理学葡萄牙自治区释 Ponta Delgada蓬塔德尔加达葡萄牙亚速尔自治区的首府和最大港口。
随便看	positive definite product positive definite quadratic form positive definite scalar product positive definite sequence positive definite solution positive definite space positive definite tensor positive definte rational fanction positive deviation positive diffeomorphism positive diffeomorphisms positive differential positive direction positive displacement compressor positive displacement flowmeter positive displacement motor drill positive displacement pump positive displacement sensor positive distinctiveness positive distribution positive divisor positive divisorial ideal positive domain positive drawing positive drive lift

科学参考收录了854744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。