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As follow, the theory of filament division is introduced.
接着提出了灯丝的分割原理。
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The theory of plate tectonics is the division of palaeo-plates.
板块构造理论是古板块分区的基础。
youdao
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The theory of plate tectonics is the division of palaeo-plates.
板块构造理论是古板块分区的基础。
youdao