通过这一系列过程将钨酸纯化，然后高温灼烧即得高纯三氧化钨。

The purified precipitate burns at elevated temperature and high pure tungsten trioxide can be obtained.

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通过这一系列过程将钨酸纯化，然后高温灼烧即得高纯三氧化钨。

The purified precipitate burns at elevated temperature and high pure tungsten trioxide can be obtained.

youdao