Complex sentence: A Schlenk line (also vacuum gas manifold) refers to system consisting of a dual manifold with several ports, usually connected to a source of purified inert gas such as nitrogen or argon which is vented through an oil bubbler, and a high vacuum pump.
Split into simpler sentences: A Schlenk line (also vacuum gas manifold) refers to system consisting of a dual manifold with several ports. One manifold is connected to a source of purified inert gas, while the other is connected to a high vacuum pump.