The electrode is made of high atomic number metal.

电离室电极用高原子序数的金属制造。

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Materials with high densities often contain atoms with high atomic Numbers, such as gold or lead.

高密度材料通常由较大原子序数原子构成，例如金和铅。

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Materials with high densities often contain atoms with high atomic Numbers, such as gold or lead.

高密度材料通常由较大原子序数原子构成，例如金或铅。

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Some of their work involved X-rays produced by particle accelerators, devices that bring atomic particles into high energies.

VOA: special.2009.12.08

(Sound) Amid loud acclamations of approval, top hardline Iranian cleric, Hojatoleslam Ahmad Khatami warned the West that Tehran will produce its own high-grade uranium for a medical research reactor, if the UN International Atomic Energy Agency refuses to provide the fuel.

VOA: standard.2009.11.28

He wanted the first atomic bomb to be exploded high above Tokyo where its power would be demonstrated.

ECONOMIST: Edward Teller

In 1966 Kenneth Greisen, Vadim Kuzmin and Georgiy Zatsepin showed that high-energy charged particles (cosmic rays are mostly atomic nuclei, and thus positively charged) should be slowed by collisions with the photons of the cosmic microwave background (radiation left over from the Big Bang that permeates all space).

ECONOMIST: Cosmic rays: They came from outer space | The

Solid-fuel reactors are atomic pressure cookers, with the constant danger of high-pressure ruptures, meltdowns, and the forceful ejection of radioactive material into the environment.

FORBES: UK Parliament Group to Study Thorium Reactors