难熔化合物

相反，焦博士认为难熔化合物主要是这些“小虫子”应对病毒感染而产生并释放出来的。

Instead , Dr Jiao thinks refractory compounds are made and released by these bugs mainly in response to viral infections .

近年来，放电等离子烧结技术已成功用于制备金属陶瓷复合材料，且在制备难熔化合物、纳米材料、梯度功能材料和开发新金属陶瓷复合材料方面有其独特的优越性。

In recent years , SPS has been successfully applied to fabricating metal-ceramic composite materials . The particular superiority of SPS applied to fabricating metal-ceramic composite materials lies in fabricating refractory compounds , nanophase materials , functionally gradient materials and new materials .

结果表明，难熔金属化合物（MC）在烧蚀过程中进入到距表层几个微米之内的纤维和基体炭微晶内，明显影响了相邻微晶的形貌。

It was found that refractory metal carbides ( MC ) entered the crystallites of the composites to a depth of several microns from the ablated surface and obviously influenced the texture around them .

GB/T3249-1982难熔金属及化合物粉末粒度的测定方法费氏法安氏型砂粒度测定仪

Standard method for determination of particle size of powders of refractory metals and compounds & Fisher method