The device consists of drive machine, neutron absorber and control system.

该装置由驱动机构、固体中子吸收体、控制系统组成。

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A lustrous gray strong metallic element resembling titanium; it is used in nuclear reactors as a neutron absorber; it occurs in baddeleyite but is obtained chiefly from zircon.

一种有光泽、灰白色、坚固的金属元素，类似钛，在核反应堆中用作中子吸收剂，见于斜锆石中。

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Boric acid is a strong neutron absorber which will help prevent the nuclear fuel from overheating.

硼酸是一种强烈的中子吸收剂，可用于阻止核燃料过热。

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In particular the intermediate product protactinium-233 (Pa-233) is a neutron absorber which diminishes U-233 yield.

FORBES: Is Thorium the Biggest Energy Breakthrough Since Fire? Possibly.

This alloy isn't new--it's been used as a neutron absorber in nuclear power plants--but hafnium's use as a chip insulator required a fabrication breakthrough.

FORBES: Magazine Article