增强体原位合成避免了其污染问题，也解决了熔铸过程中存在的两相润湿性问题，有利于制备性能更好的复合材料。
Ceramic particle of in situ synthesis avoids pollution and wettability existing in casting technique, so it is valuable to fabricate Fe matrix composite with better properties.
目前，纯锡镀层的焊接可靠性差，锡基二元合金镀层有脆性大、润湿性差等方面的问题，贵金属镀层成本高。
At present, pure tin deposit has a bad solder reliability, tin-based binary alloy deposits have big brittleness or bad wettability, and noble metal deposits have high price.
从某种意义上讲，润湿性、表面张力等物理参数是影响空间材料制备能否成功的关键问题之一。
In a sense, wettability, surface tensity and other physical parameters are some of the key factors for the material manufacture in outer space.
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