style="font-size:15px;"> …………
condition must Engineers control the shock of absorbers.
…………………………………………………………………………………………………
…………
infrared led beam – инфракрасный светодиодный луч receiving photodiode – приемный фотодиод
too much oil – слишком много масла cannot reach – не может достигнуть reflect from – отражаться от
alarm activates – активируется тревога
Put the words in gaps:
– Sunlight reflects from water.
– If the sensor fails to detect any movement for twenty seconds, an alarm activates.
– goes through oil mist.
Oil Mist Detector Part 4:
low explosion limit
per liter of air – на литр воды supply air – приточный воздух through – через
calibrated orifice – калиброванное отверстие
Put words in gaps:
– Very cold can cause frost formation in the heat exchanger, which can
damage it.
– The concentration of oil is at a …………………
– We do this several programs.
– From filters air goes to……………………..
– Radon is measured in picocuries (pCi/L), an indicator of
radioactivity.
Read the text and do exercises:
If there are 5 percent of low explosion limit (2,5 mg per liter of air), oil mist alarm high activates.
Air filters are very important. Air must be very fresh not to activate alarms. Supply air goes through filters to calibrated orifice and then to measuring head.
Write words in the gaps:
If there are 5 percent of low limit (2,5 mg …… liter of air), oil mist alarm
high activates.
Air filters are very important. Air must be very fresh not to activate alarms. Supply
……… goes through filters to orifice and then to measuring head.
Write sentences in the correct order:
Supply air goes through filters to calibrated orifice and then to measuring head. Air must be very fresh not to activate alarms.
Air filters are very important.
If there are 5 percent of low explosion limit (2,5 mg per liter of air), oil mist alarm high activates.
…………………………………………………………………………………………………
…………………………………………………………………………………………………
…………………………………………………………………………………………………
…………………………………………………………………………………………………
………
Answer
