через какую-то долю секунды после
• A split second (or A fraction of a second) after detonation, an automatic air gun jolts the unit into detection position.
Русско-английский научно-технический словарь• A split second (or A fraction of a second) after detonation, an automatic air gun jolts the unit into detection position.
Русско-английский научно-технический словарь