合金卡头-用来卡紧钢丝绳回头的椭圆形合金块。
采用纳米技术制备高比重钨合金块体材料有望进一步提高其性能，促使其应用。
It is hopeful to enhance the capability and urge the application of the high specific gravity tungsten based alloy of block materials by using nano preparation technology.
然而，纳米硬质合金粉末烧结过程中WC晶粒的快速长大行为使得难于获得真正意义上的纳米晶硬质合金块体材料。
However, the rapid intrinsic growth characteristic of nanometer WC grain during sintering process lead nano-grained cemented carbides with excellent mechanical performances is not acquired.
然而，纳米硬质合金粉末烧结过程中WC晶粒的快速长大行为使得难于获得真正意义上的纳米晶硬质合金块体材料。
However, the rapid intrinsic growth characteristic of nanometer WC grain during sintering process lead nano-grained cemented carbides with excellent mechanical performances is not acquired.
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