“river gradient”的概念、定义、翻译、参考文献-科学参考

单词	river gradient
释义	river gradient Encyclopedia 工学〔主要名词〕释 river gradient河流比降单位河长内的落差。以小数或千分数表示。
随便看	OB star obstertrics-gynecology hospital（Maternity Hospital） obstetrical procedure in female livestock obstetric and gynecologic clamp obstetric and gynecologic hook & needle obstetric and gynecologic knife obstetric and gynecologic scissors obstetric and gynecologic surgical operation instruments obstetric and gynecologic tweezer & clip obstetric apparatus for domestic animals Obstetrician obstetrician's hand obstetric ultrasonography obstinate arthralgia obstruction obstruction class obstruction cocycle obstruction LED obstruction of evidence obstruction of intestines obstruction of the oesophagus obstruction of urinary tract obstruction point obstruction set obstruction theory

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。