см. тж. метод ; навигационные средства ; являться средством
• A softening agent ...
• This provides a means for the removal of corrosive compounds.
• The use of transistors is evaluated as a means of alleviating this problem.
• The twentieth century's potent technological media of mass communication ... The representation of electrical quantities as ... is a useful tool of circuit analysis.
• The reflected shock technique is a valuable tool for chemical kinetic studies.
• Electron diffraction is also used as a research tool in studying ...