three-hole core 三孔铁心
full-hole core 全直径岩心
multiple hole core 多孔磁芯
core hole 钻孔 ; 取心井 ; 岩心钻孔
Fine-hole Core 细孔型芯
electron-hole core 电子空穴心
Core-hole clock spectroscopy 芯能级空穴时钟谱
core ventilating hole 铁心轴向通风孔
hole core
洞核心
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Our own galaxy, the Milky Way, has a colossal black hole at its core, too, which is some three million times the mass of our Sun.
BBC: NEWS | Science/Nature | Deepest X-rays tell merger story
Verizon Communications reported another round of stellar returns at its Verizon Wireless arm, more than offsetting a growing revenue hole left by its declining core local-phone business.
FORBES: Verizon Goes It Alone
Horatiu Nastase says his calculations show that the core of the fireball has a striking similarity to a black hole.
BBC: Artist's representation of a black hole,
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