The sulfur tolerance of nickel metal catalysts in aromatic hydrogenation has been studied systematically on the base of nickel active unit in this paper.

以镍为活性组元，系统地研究了镍基芳烃加氢金属催化剂的抗硫性能。

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Andrew Tempest Mitchell, of the West Yorkshire Police Federation, previously said he was "worried from a West Yorkshire perspective that we don't have an active unit within the policing area, which is quite large".

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This is made possible by an active articulated torsional drive unit, which in combination with a complex control system attains an unprecedented level of efficiency in flight operation.

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With the development of Suboxone Film, the company was able to introduce child resistant, unit-dose packaging with the same active ingredient before it was able to identify and resolve the packaging issues experienced with Suboxone Tablets.

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