Allowed docking ports range from LMK4 to MK3. Under LMK4, the corridor would be too small for humans to walk; over MK3 is probably overkill.

• 允许对接口大小处于LMK4到MK3之间。如在LMK4以下，人走在回廊里行走就过于狭窄;而在MK3以上多就过大了。