“perpend”的概念、定义、翻译、参考文献-科学参考

单词	perpend
释义	perpend [`pǝr´pend] ^{CIVIL ENGINEERING} A bondstone that extends completely through a masonry wall and is exposed on each side of the wall.
随便看	tree climate tree diagram tree fern tree frog tree line tree pruning tree-ring hydrology trefoil trellis drainage Trematoda trematodiasis Trematosauria trembling ill Tremellales tremie tremolite tremor trench trench duct trencher trench excavator trench fever trenching machine trench mouth trench sampling

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。