full screw การใช้

• They may also be referred to as a " full screw " ( bombardier ) or a " lance jack " ( lance-bombardier ), in common with corporals and lance-corporals.
• In spite of the Clamshell's effectiveness at preventing water intrusion to a submerged depth of over 100 meters, it was eventually replaced by more easily serviceable versions with full screw-on case backs and readily available generic crystals.