you hold the microscope by its arm
Hold in upright position with one hand on its arm and the other supporting its base. Avoid swinging it or jarring it when you set it down.
carry by arm and base
hold it with 2 hands
While moving the microscope from one place to another, always keep it in an upright position.
you hold the microscope by its arm
The technique used for determining the proper following distance is the "3- second" rule.
The technique used for determining the proper following distance is called the "2-second rule." This technique involves keeping a distance of at least 2 seconds between your vehicle and the vehicle in front of you while driving. This allows for enough time to react to sudden stops or changes in traffic conditions.
Before the invention of the microscope, you couldn't see a single cell due to the fact that they are too small to bee seen with the naked eye. With the invention of the microscope, scientists could now observe and study individual cells.
Hold in upright position with one hand on its arm and the other supporting its base. Avoid swinging it or jarring it when you set it down.
From the bow
carry by arm and base
gago...
From the bow
The proper adjective British describes a noun of or from the proper noun Britain.
hold it with 2 hands
jemaima