moly cow

名词 n.
中文释义
英 /ˈməʊli kaʊ̯/    美 /ˈmoʊli kaʊ̯/

英文释义

名词 n.
  1. A device used to extract from a source of decaying molybdenum-99 the metastable isotope ⁹⁹ᵐTc of technetium, which is the most commonly used medical radioisotope. informal
    — When the ⁹⁹Tcₘ isotope is needed for medical imaging purposes, it has to be created on the spot because its half-life is only six hours. This is done using a device filled with longer-lived ⁹⁹Mo, which decays into ⁹⁹Tcₘ, continually replenishing the supply within the device. Because the process of removing the accumulated ⁹⁹Tcₘ is called "milking", the device is informally known as a "moly cow."

词形变化

moly cows plural

词源

From moly (informal term for molybdenum) + cow. The word cow alludes to the fact that the device “milks” technetium-99m from molybdenum-99: see quotations.
0 次浏览 数据来源: Wiktionary