Zamorano is also using technology that attaches a probe to surgical instruments so that she can track their positions.
萨莫拉诺也在使用一种将探针连接到手术器械上的技术，这样她就可以追踪它们的位置。
3
To make use of the MMPs, Dr. Tsien attaches his fluorescent dye, along with some positive charges, to one side of a small hairpin-shaped protein molecule.