double focusing वाक्य

The Pb ions are analyzed using a double focusing mass spectrometer that comprises both an electrostatic and magnetic analyzer.
Other mass analyzers coupled to ICP systems include double focusing magnetic-electrostatic sector systems with both single and multiple collector, as well as axial and orthogonal accelerators have been used ).
The new instruments have the same framework as any conventional gas source IRMS, but incorporate new features such as larger magnetic sector, double focusing sectors, quadrupole mass filter and multi-collectors.