“sighting instrument”的概念、定义、翻译、参考文献-科学参考

单词	sighting instrument
释义	sighting instrument [`sīd·iŋ ´in·strǝ·mǝnt] ^ORDNANCE A device or an instrument designed to aid in the pointing of a weapon.
随便看	cell membrane cell movement cellobiase cellobiose celloidin cellophane cellose cellosolve cell pathology cell permeability cell plate cell recognition cell sap cells of Paneth cell-surface differentiation cell-surface ionization cell theory cell-type tube cellular cellular affinity cellular automaton cellular chain cellular cofferdam cellular convection cellular glass

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。