speaking tube การใช้

• Many of the historic details have been retained, including speaking tubes for intra-house communication.
• Communications were done by the instructor through a speaking tube to the aft-seated student.
• As well as producing ear trumpets, Rein also sold hearing fans, and speaking tubes.
• A speaking tube was tried but found to be useless.
• In domestic applications, voicepipes were smaller and referred to as " speaking tubes ".
• Incongruously, the Juniper's bridge still has one speaking tube.
• Later additions were a periscope sight, an exhaust pipe and speaking tubes for internal communications.
• Speaking tubes work nicely for hundreds of feet.
• Her bridge is completely intact with speaking tubes, the projector binnacle and radio aerials all in evidence.
• Several speaking tubes could be hung from the edge of a desk to communicate with different locations.
• The closed cars also included speaking tubes, adjustable ventilators, and a dome light that had a separate battery.
• The tank commander communicated with the driver by speaking tube, which was replaced with a signalling lamp in 1932.
• The height of the rail on which the winches ran was, and communication with the operator was by speaking tube.
• Athanasius Kircher produced many automata to create Jesuit shows, including a statue which spoke and listened via a speaking tube.
• Ben has to explain to the people above via the dumbwaiter's " speaking tube " that there is no food.
• At 20 minutes to 1 I whistled up the speaking tube and asked him if she was getting any nearer.
• Above the armored deck, each ship had forecastle and telegraph, and speaking tubes; it was protected by of steel armor plate.
• Although the actual Oracle is hidden from sight for reasons explained later in the series, it is accessible through a speaking tube.
• Speaking tubes were employed in some offices, with whistles at either end and were therefore also known as "'whistling tubes " '.
• Above the armored deck, " Yorktown " had forecastle and telegraph, and speaking tubes; it was protected by of steel armor plate.