本國大包裹 的英文怎麼說
中文拼音 [běnguódàbāoguǒ]
本國大包裹
英文
domestic mail in bulk-
Having consulted all the available literature on the subject, according the basic principal and method of design of radar absorbing materials, composites of epoxy resin ( ep ) - coated ultramicro iron, ultramicro iron - coated hollow glass bead, and hollow glass bead / ultramicro iron / ep with three - layer structure were prepared
本文是在查閱了大量國內外文獻的基礎上,依據雷達波吸收材料研究的基本理論和設計方法,以羰基鐵為重點研究對象,採用原位復合的方法制備環氧樹脂( ep )包裹羰基鐵、超微鐵包裹中空玻珠以及中空玻珠超微鐵ep三層結構復合粒子。
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