优先溶解 meaning in Chinese

selectivity solution

So the sinter temperature of the material are controlled to under 1450 , the sintered time under 5min . sintered material has a density of 2 . 78g / cm3 , a bending strength of 287mpa and fracture toughness of 5 . 5mpa . m1 / 2 . the effect of sio2 on the infiltration of the liquid si into the sicw / c preform is also discussed in the paper
研究了材料的低温烧结过程，对sicw烧结时的溶解以及sio _ 2杂质对材料烧结的影响作了深入的讨论：采用在原料中掺入纳米- sic微粉，使其优先溶解而起到保护sicw的作用。