Add punctuation: The Square Cylinder Hole Is Changeable To European Cylinder HoleThen You Can Install The European Profile Cylinder As Security Locks
A: *The Square Cylinder Hole Is Changeable To European Cylinder Hole,Then You Can Install The European Profile Cylinder As Security Locks.

Add punctuation: Most people have heard that a wise doctor in London identified the source of the cholera contagion by plotting the location of the victims on a map The clustering of the victims around particular wells revealed that cholera was spread through contaminated water
A: Most people have heard that a wise doctor in London identified the source of the cholera contagion by plotting the location of the victims on a map. The clustering of the victims around particular wells revealed that cholera was spread through contaminated water.

Add punctuation: Applied current flowing through this copper conduction path generates a magnetic field which is sensed by the integrated Hall IC and converted into a proportional voltage
A:
Applied current flowing through this copper conduction path generates a magnetic field which is sensed by the integrated Hall IC and converted into a proportional voltage.