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ѤҪԡ
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ʶԵ

: 4263631
й 14 ؤŷ ͹Ź
s
ͧ
single lens microscope ͧŷȹ쪹ԴŹ 1131
single slit 767
Singularity 1927
sky wave 764
slide projector 800
slip ring 1308
slit 689
slope 693
smoke cell 510
Sn պء 1153
Snell law 2108
soap ʺ 1154
soda ash ⫴ͪ 2533
sodium hydroxide δ͡䫴 1679
sodium 845
soft iron 774
soil Թ 796
solar air system collector 715
solar cell 461
Solar cell 453
 
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