The phrase "actual certain" is not correct in written English.
It is a combination of two words that do not typically go together in this context. An example of a corrected phrase could be: "I am certain that the information is accurate."
Alternatives: "truly certain" or "definitely sure."
In actual fact, certain practical thermodynamic limitations, which are a function of the peak gas temperature achieved in the cycle, restrict the efficiency of the process to about 40 percent of this ideal value.
Thus he takes causal principles to describe how a form is realized (made actual) given certain material resources.
Consequently, the isoform sequence cannot be simply related to the actual habitat certain species, but it is obviously also affected by other factors such as evolutionary history or life strategy.
Because of certain actual activities on behalf of Communism in the past, he had been convicted of crime.
Because of a certain actual activities in the future, he had been accepted as a candidate for public office.
For example, "colour-hearing," in which people say that specific sounds evoke in them the actual experience of certain colours, is relatively frequent.
Currently, only actual shares and certain types of derivatives are taken into account for purposes of determining the threshold for the reporting requirements.
This is an illuminating profile of Henrietta Leavitt (1868-1921), tHarvard College Observatoryory assistant who discovered a direct correlation between the variable and actual brightness of certain stars, enabling astronomers to use those stars as cosmic yardsticks.
The Indians of Central America produced a type of embroidery known as featherwork, using actual feathers, and certain tribes of North America developed quillwork, embroidering skins and bark with dyed porcupine quills.
Close-ups accentuate the more intimate relationship the actor can establish with a film audience, an audience that has often followed the actual life of certain actors whom the industry promotes as "stars".
