“jack”的概念、定义、翻译、参考文献-科学参考

单词	jack
释义	jack 手持风锤插孔插口闪锌矿支撑物起重机塞孔弹簧开关倒链拉钩连杆
随便看	master blank master block master board master body master bracket master builder master bushing master busy master cam Master Card master card master cast master catalogue master central timing system master characteristics master check master clear (switch) master clock master clock frequency master clock-pulse generator master clutch master clutch brake master clutch release yoke master cock master collet

科学参考收录了1248194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。