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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。

delayed proton delayed repeater satellite delayed speech delayed sweep delayed yield
delay element delay equalizer delayer delay flip-flop delay/frequency distortion
delay line delay-line memory delay-line storage delay multivibrator delay relay
delay time delay unit Delbrück scattering d electron Delepine reaction
backing strip backing up back jamb backjoint backlands
backlash backlight backlimb backlining back lintel
back lobe backlog backmarsh back mixing back nailing
back nut back off back order backout backplane
backplastering backplate backplate lamp holder back porch back pressure
back-pressure curve back-pressure-relief port back-pressure testing back-pressure valve back putty
back radiation back rake back range back reef back-reflection photography
back resistance backrope back-run process back rush backs
backsaw backsawing backscatter gage backscattering backscattering thickness gage
backscatter radar backset back-set bed backshore backshore beach
backshore terrace back shot backsight backsight method back siphonage
back slope back solution backspace backspring backstay
backstep sequence back stoping backswamp backswamp depression back sweetening
backtalk backthrusting back titration back-to-front ratio backtracking
backup backup arrangement backup relay backup strip backup system
backup tong Backus-Naur form back veneer back vent backward-acting regulator
backward-bladed aerodynamic fan backward difference 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
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