• 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.
• 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.
Циммерман М., Веденеева К.. Русско-Английский научно-технический словарь переводчика. Russian-English scientific dictionary for translators. 2012