例句與造句

1. The Seldinger technique is used for angiography, insertion of chest drains and central venous catheters, insertion of PEG tubes using the push technique, insertion of the leads for an artificial pacemaker or implantable cardioverter-defibrillator, and numerous other interventional medical procedures.
2. It's difficult to find insertion of chest drain in a sentence. 用insertion of chest drain造句挺難的