surface check การใช้

• The military also wanted a " surface check " grease fitting that would help to prevent dirt from entering through a fitting.
• Lincoln had developed many advances in fittings including the Bullneck fitting and a surface check feature  the design that remains the most widely used in industry today.
• The boat rose up to periscope depth for a routine surface check at 3 : 20 p . m . " Sighted smoke bearing 242 degrees, " the skipper wrote in the Paddle's log.
• He said there wasn't enough time to clear land mines, but that U . N . teams would be able to complete a surface check and clearance of any ordnance on the ground by Wednesday.