“downhole junk”的概念、定义、翻译、参考文献-科学参考

单词	downhole junk
释义	downhole junk Encyclopedia 工学钻井复杂事故种类释 downhole junk井下落物钻井时，形状不规则且无打捞部位可与打捞工具连接的物体（如钻头牙轮、刮刀片、井口工具等）落入井内的现象。
随便看	non-zero dispersion shift single mode fiber nonzero divisor nonzero element nonzero exponent nonzero form nonzero function nonzero ideal nonzero idempotent nonzero multiplier nonzero polynomial nonzero quaternion nonzero socle nonzero solution non-zero-sum game nonzero-sum game non zero sum two person finite game non-zero-sum two-person finite game nonzerosum two person finite game nonzero value nonzero vector nonzero word non-zonality non-zonal vegetation No Object Communication no observed-adverse-effect level

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。