“pilot hole”的概念、定义、翻译、参考文献-科学参考

单词	pilot hole
释义	pilot hole Encyclopedia 理学地质钻孔释 pilot hole先导孔在钻深孔或超深孔之前，在深孔或超深孔孔位附近钻的一口直径相对较小、深度相对较浅的钻孔。“双孔方案”中首先施工的钻孔。
随便看	high pressure oil pump metering unit high pressure organic synthesis high pressure oxygen treat high-pressure oxygen treat high pressure physics high pressure polyethylene high pressure pump high-pressure refolding high pressure roll crusher high pressure sizing high pressure sodium lamp high pressure spinning high-pressure spinning high pressure synthesis high pressure technique high-pressure tunable CO_2 laser high pressure turbine high pressure (voltage)digital treatment devices high pressure water canon high pressure water-jet cutting high presure oxygen treatment devices high productivity computer high pure oxide refractories high pure source materials high purity

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。