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-silicon LDMOS体硅LDMOSbulk effect ampifier体效应放大器bulk encryption unit总体加密机bulk cross-section总截面bulk raising machine体积提升机Bulk heterojunctions体异质结bulk compressibility体压缩率bulk-Si CMOS deviee体硅CMOS器件bulk storage elevator散装货物提升机bulk-head connector穿墙式接插件