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科学时代收录了3405121条科普词条,基本涵盖了常见科普常识及英语词汇的翻译,是科学学习和研究的有利工具。

double layered text editor double layer effect double-layer effect double-layer electrification double-layer fluorescent screen
double layer lens double-layer lens double layer metal capacitor double layer optical information medium double-layer optical recording medium
double-layer potential double layer potential double-layer recording media double-layer screen double layer STN
double layer structure double layer super- twisted nematic liquid crystal{=DSTN} double layer supertwist nematic{=DSTN} double-layer weathering double layer winding
double-layer winding double LCD Double LCD double-lead covering double leaf
double-leaf door double-leaf gate double left rotation double legitimate combination double length
double length arithmetic double length floating point number double length number double-length number (numeral) double-length number(numeral)
double length numeral double length precision double length register double length result double length shift
double length working double lens double letter double level island platform double-level road
double level side platform double lever brake double lever rocker mechanism double liability double life
double lift cam double lift dobby double lift double cylinder jacquard double lift jacquard double lift single cylinder jacquard
double light source double limit double line double line abreast double line crossover patrol
double line frequency ripple reduction double-line ground fault double line leveling double line possession double line sign
double line [spectroscopic] binary double-line (spectroscopic) binary double line stream double line to earth fault double line toearth fault
double line to ground fault double linkage double link device double linked deque double linked list
double linked ring double-link jib double-link jib in parallelogram double link suspension double link suspension system
Double lip double loaded corridor double loading double locker machine double locks
double logarithmic double logarithmic chart double logarithmic scale double London double-loop learning
double loop learning double-loop monocable circulating detachable ropeway double-loop to-and-fro bicable ropeway double low water double luff tackle
double-magic nucleus double main system double-main system double major double-make contact
Double malaria double-man tea picking machine double-man tea plant pruning machine double manual Double manure salts (Sulfate of potash-magnesia)
Double marginalization Double-masked double-mass analysis double mass curve double-mass curve analysis
double mast double mast S/R machine double mating; double service double-M-derived filter double mechanical seal
double melting point double-membrance loudspeaker doublement {Fr.} double meridian distance double meridian distance (DMD) method
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