Bulkan布尔坎bulkn.体积；容积；大块；大部分；大批adj.散装的；大量的vt.使膨胀；使成堆vi.膨胀；显得重要bulk specific gravity容重,体积密度,散比重,毛比重,毛体积比重,散装比重bulk screening length体屏蔽长度bulk media conversion大容量媒体转换bulk creep compliance体积蠕变柔量bulk-storage memory大容量存储bulk amorphous steels非晶钢bulk blend fertilizer掺混肥料Bulk flotation process混合浮选bulk prepolymerization本体预聚合bulk shielding reactor屏蔽试验反应堆, 整体屏蔽反应堆