Hightemperaturephase change heat storage using molten fluoride salts is one of the key techniques for space solar thermal dynamic power system.
高温熔盐相变储热是空间太阳能热动力发电系统的关键技术之一。
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Research has believed that veining in admission and exhaust passage of diesel engine cylinder head may mainly be caused by crack of sand core occurring in hightemperaturephase change expansion.
研究认为，柴油机气缸盖进、排气道脉纹的产生主要是由硅砂高温发生相变膨胀导致砂芯开裂引起的。
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It is more bright, has low hardness, low temperature of synthesis and requires less time in synthesis when compared with products synthesized by hightemperature solid-phase reactions.