calibrated

"The thermometer showed the room temperature was 25 degrees Celsius. "

"The science teacher conducted an experiment to demonstrate how plants grow in different types of soil. "

"The student used a microscope to see the tiny cells in the plant leaf. "

"The violinist was a master of her instrument."

"to bring a thing into comparison with another;  there is no comparison between them"

"accurate knowledge"

"He listened carefully to his mother's concerns, feeling sorrowful about her disappointment. "

"The computer technician fixed the broken printer in the school library. "

"The school's new uniform policy is the standard for all students. "

"We measured the temperature with a thermometer.   You should measure the angle with a spirit level."

"The scientist studied the effects of different types of soil on plant growth. "

"The baker carefully recorded the measurements of all the ingredients to make sure the cake would turn out perfectly. "