“changing bag”的概念、定义、翻译、参考文献-科学参考

单词	changing bag
释义	changing bag [`chānj·iŋ ´bag] ^ENGINEERING An enclosure of lightproof material used for operations such as loading of film holders in daylight.
随便看	symphysis symphysis pubis Symphyta symplectic group of dimension n symplectic transformation symplectite symplektite symplesite sympodium symptom symptomatology sym-tetrachlorodifluoroethane sym-tetrachloroethane sym-trioxane synadelphite Synallactidae synandrous synangium synantectic synantexis Synanthae Synanthales synapse synapsis synaptic transmission

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。