理学 计算机硬件电路 释 via hole 过孔 用于连接多层印制电路板内不同层导体的垂直连接孔。又称金属化孔。
计算机硬件 计算机工程制造 释文 via hole 过孔
- medicine of Chinese ethnic groups
- Medicine of New Concept Weapons Protection
- medicine pathogenesis
- medicine registration standard
- Medicine River
- medicine spot cloth
- Medicine Standard Promulgated by China Food and Drug Administration
- medicine standard promulgated by Ministry of public health of the People's Republic of China
- medicine terminalia fruit
- Medicolegal autopsy
- medico-legal expertise
- medieval agricultural economy in Eastern Europe
- Medieval Arabic Philosophy
- medieval Byzantine law
- Medieval Cities
- medieval city law
- medieval climatic anomaly
- medieval ethical thoughts
- medieval European law
- Medieval European Technology: 800-1400, Tradition and Innovation
- medieval European views of nature
- Medieval guild Art Education
- Medieval Islamic Cities
- medieval Jewish philosophy
- medieval logic