，分歧- longitudinal axis
- longitudinal data
- longitudinal multiplication
- longitudinal section
- longitudinal wave
- long life
- long lifetime
- long line
- Longman, I.M.
- Longman method
- long memory model
- long memory stationary process
- long memory time series
- long multiplication
- long prime
- long radius
- long-range
- long-range-dependent
- long-range order
- long root
- long sequence
- long-tailed
- long-time behavior of solutions
- Longuet-Higgins circle
- Longuet-Higgins, M. S.