Sentence examples for methods existed from inspiring English sources
Chain distribution methods existed in China as early as 200 bc and in 17th-century Japan.
Previously, no reliable methods existed for identifying these kinds of combinations.
Steam and hot-water heating systems of the late 19th century provided a reasonable means for winter heating, but no practical methods existed for artificial cooling, ventilating, or humidity control.
Several physicochemical methods existed for the treatment and remediation of metal-contaminated environments.
The analytical methods existed for moxifloxacin hydrochloride included determination by spectrophotometry [3 5], and high performance liquid chromatography [6, 7].
The analytical methods existed for prednisolone included determination by micellar electrokinetic chromatography [8], spectrophotometry [9], high performance liquid chromatography [10, 11], and thin layer chromatography densitometry [12].
Other methods exist for boosting the performance of capacitors.
Few methods exist to solve this problem.
Numerous other methods exist for preparing amorphous solids, and new methods are continually invented.
"No methods exist for verbally describing the essence of arbitrary odors," says Harel.
Methods exist for making those transistors, says Annis, but they could stand to improve.
