• Along the length of the pipe ...
• A rigid keel-like structure runs the ( whole ) length of the hull and bottom.
• Along the length of the pipe ...
• A rigid keel-like structure runs the ( whole ) length of the hull and bottom.
Циммерман М., Веденеева К.. Русско-Английский научно-технический словарь переводчика. Russian-English scientific dictionary for translators. 2012