Complex sentence: The Type 89 discharger could also be used with a more powerful mortar-like shell, weighing approximately two pounds, known as the Type 89 50mm High Explosive shell.
Split into simpler sentences: The Type 89 discharger could also be used with a more powerful shell approaching the power of a light mortar. Weighing approximately two pounds, it was known as the Type 89 50mm High Explosive shell.