Las emanaciones de gas aumentan la contaminación industrial que pende sobre muchas ciudades.
for measuring the sound pressure level on a measurement surface enveloping the source and for calculating the sound power level produced by the sourcejw2019 jw2019
If the difference is more than # °C, a second check-test shall be carried out, and the lowest figure of the flash-points obtained in either check-test shall be adoptedOpenSubtitles2018.v3 OpenSubtitles2018.v3