Ngwaahịa
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LTS-7 Semiconductor Laser
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LTS-8 Otutu oriọna mgbapu
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LTS-9 Sodium-Tungsten oriọna
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LTS-10/10A He-Ne Laser
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LTS-11 He-Ne Laser (5mW)
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LTS-12 Hydrogen-Deuterium oriọna
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LTS-13 Green Laser
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Ebumnuche abụọ LTS-14 Tungsten oriọna
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LTS-15 Nrụgide Mercury oriọna
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LTS-16 Fiber-optic Tungsten-Bromine ìhè isi iyi
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Ngwa LEAT-1 Kpọmkwem Ikuku Ratio Ratio
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Ngwa LEAT-2 nke na-atụ ike ikpo ọkụ nke ọla
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LEAT-3 Ngwa Arụ Ọrụ maka Okpomọkụ akọwapụtara nke Vaporization nke Liquid
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Ngwa LEAT-4 Ihe Nleba Ọkụ
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LEAT-5 Nnwale Mgbasawanye okpomọkụ
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Ngwa LEAT-6 nke Nlele Okpomọkụ zuru oke
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Njirimara Okpomọkụ LEAT-7 nke ihe mmetụta okpomọkụ dị iche iche
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Njirimara okpomọkụ LEAT-7A nke ihe mmetụta okpomọkụ dị iche iche
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LEAT-8 NTC Thermistor nnwale
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Ngwa LEEM-1 Helmholtz Igwe Igwe Igwe Igwe Igwe Ọdụdọ
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LEEM-2 Mwube nke Ammeter na Voltmeter
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Ngwa LEEM-3 Eletrik na-ahụ maka eserese
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Ngwa LEEM-4 nke Arụ Ọrụ Liquid
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Ngwa LEEM-5 Mmetụta Mmetụta Ụlọ Nzukọ