The deadbolt when fully thrown in the locking direction and detained, shall have a minimum projection to the forend.
当门栓完全朝锁定方向抛出并被扣住时，门栓对法线的投影最小。
2
When measured in accordance with 6.7.6, the deadbolt when fully thrown in the locking direction and detained, shall have a minimum projection to the forend of L1 (see Figure 1 and Table 4).