加强的闭锁装置的英文

• heavy lock

• 加强:    strengthen; enhance; augment ...
• 的:    4次方是 The fourth power of 2 i ...
• 闭锁:    shutting; bottoming; interlo ...
• 装置:    installation; device; appara ...
• 闭锁装置:    blocking device; catch; device for closing; lock out device; securing device