Injection, in broadcasting, the level at which a subcarrier is sent by the transmitter, expressed as a percent of total modulation
Injection quill, used in the petrochemical industry to insert chemicals, typically inhibitors, for proper mixture within a base chemical
Fuel injection, a means of metering fuel into an internal combustion engine
Orbit injection, changing a stable orbit into a transfer orbit
Injection, in construction, insertion of consolidation materials (i.e., cement grout mixtures, gravel) by means of dry type rotary shortcrete high pressure pumps
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