- Infusion cannula entry sites are anesthetized with 1% lidocaine with 1:100,000 epinephrine and small incisions are made using a #11 blade.
- Whenever a file is opened using fopen function, a file pointer is returned.
- The area selected for developing is cleared using bulldozers, either by cutting the trees with a V- cutter or by walking the trees down with the dozer raised about 3 feet off the ground.
- Using a screwdriver, remove the four screws holding the cover in place.
- Four specimens each of 38 mm in diameter are cut using the appropriate cutter.
In these five sentences using has been used in different ways. But by has not been used before using. Will it be wrong if I use by before using? Why will it be wrong? If using of by in this case is wrong, please tell me when I can use by using.