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Subject: ..filled by weight Речь идет о различных композитных материалах для пломбирования зубов.Many so-called ''sub-micron'' hybrid systems utilize more that 1 type of filler, combining the 0.04 fumed silica used in microfills with different types of glass particles with average sizes of about 1 μм. Nearly all of these materials are 70% to 80% filled by weight. - вот последняя фраза, что значит? Спасибо. |
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