The phrase "from the first contact" is correct and usable in written English.
You can use it when talking about a situation that has existed since the beginning of a relationship, whether it be between two people, two companies, two countries, etc. For example: "Our company has enjoyed a positive relationship with our suppliers from the first contact."
Additionally, the coalescence time τ, including the time from the first contact of the internal droplet and the drop-bulk interface to the film rupture is measured.
His particular concern was with emergent Africa at its moments of crisis; his novels range in subject matter from the first contact of an African village with the white man to the educated African's attempt to create a firm moral order out of the changing values in a large city.
The average reply time from the first contact to receiving the questionnaire was 20 days.
Track every lead from the first contact and grab leads from social networks with a single clip.
Combining triage and rapid clinical assessment maximised the potential from the first contact with a clinician, whether nurse or doctor.
In order to reduce the number of complaints, check in with every customer touch point, from the first contact to product sale or service completion.
Follow-up time was calculated from the date of the first contact to the date of the last contact and expressed in years.
"The first one looked soft, and then with the second one, the first contact from Richard Stearman was outside the box.
A few months later I got a letter from my girlfriend, which was the first contact I had had with the outside.
From the second contact session onwards, they included peer-review sessions in which students received comments about their field project reports or protocols.
The average time from first contact to the GP for the current problems of gastroscopy (3.6 weeks) was longer than the two weeks deadline between the date of the GP referral letter and appearance for "drop in", because the GPs did not refer an endoscopy by the first contact with the patient.
