Read the passage below:
In commercial aircraft de-icing operations, ground crews apply heated Type I fluid at high pressure to shear accumulated frozen contaminants from aerodynamic surfaces. Because Type I fluid possesses minimal viscosity and sheds rapidly during taxi, it provides virtually no ongoing protection against active precipitation. Consequently, when freezing precipitation persists, technicians immediately apply unheated, high-viscosity Type IV anti-icing fluid. This specialized polymer forms a temporary protective barrier across the wings that absorbs freezing moisture until takeoff speeds generate sufficient airflow to shear the gel away.
Match each operational detail from the passage with its most accurate paraphrased equivalent.
- The procedure used to eliminate pre-existing frozen buildupUsing thermal energy and pressurized force to strip away ice accumulation
- The operational drawback of the initial de-icing liquidRunning off rapidly during ground transit and providing negligible shielding against active winter weather
- The protective action of the secondary anti-icing polymerForming an absorbent coating that retains moisture until acceleration during departure blows it clear