“duplicate film”的概念、定义、翻译、参考文献-科学参考

单词	duplicate film
释义	duplicate film [`düp·lǝ·kǝt `film] ^{GRAPHIC ARTS} Film generated in a camera containing a dual supply of film.
随便看	backward difference operator backward diode backward error analysis backward folding backward pass backward read backward scattering backward wave backward-wave magnetron backward-wave oscillator backward-wave tube backward welding backwash backwash mark backwash ripple mark backwater backwater valve back wave backweld back work bacteremia bacteremic shock bacteria Bacteriaceae bacterial blight

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