primary emission การใช้

The primary emissions from the comet are shooting out from a central area that appears flat like a plain.
Rather than being a primary emission control device, the secondary air injection system was adapted to support the efficient function of the catalytic converter.
The primary emissions of 131 I decay are thus electrons with a maximal energy of 606 keV ( 89 % abundance, others 248 807 keV ) and 364 keV gamma rays ( 81 % abundance, others 723 keV ).
The primary emission lines used to distinguish the WC sub-types are C II 426.7 nm, C III at 569.6 nm, C III / IV 465.0 nm, C IV at 580.1-581.2 nm, and the O V ( and O III ) blend at 557.2-559.8 nm.
Modern smog, as found for example in Los Angeles is a type of air pollution derived from vehicular emission from internal combustion engines and industrial fumes that react in the atmosphere with sunlight to form secondary pollutants that also combine with the primary emissions to form photochemical smog.