Русско-английский научно-технический словарь
до того как
• Till (or Until, or Before) this gear was developed the chain steering-gear was the only type ...
• The older strata were deformed and eroded prior to being covered by the later sediment.
Русско-английский научно-технический словарь
• Till (or Until, or Before) this gear was developed the chain steering-gear was the only type ...
• The older strata were deformed and eroded prior to being covered by the later sediment.