Same meaning?
Mohsin Zaidi lived in Lucknow for almost four decades before settling down after his retirement in Delhi .
For nearly four decades , Mohsin Zaidi lived in Delhi before settling after his retirement in Lucknow .

Answer: no

Same meaning?
Clanculus natalensis is a species of sea snail , a marine gastropod mollusk in the Trochidae family , the top screws .
Clanculus natalensis is a species of sea snail , a marine gastropod mollusk in the family Trochidae , the top snails .

Answer: no

Same meaning?
The dam is operated by the United States Bureau of Reclamation , which built it , and is owned by the Elephant Butte Irrigation District .
The dam is owned by the United States Bureau of Reclamation , which it has built , and is operated by the Elephant Butte Irrigation District .

Answer: no

Same meaning?
Most transmitters use the heterodyne principle , so they also have frequency conversion units .
Most transmitters use the heterodyne principle so that they also have frequency conversion units .

Answer:
yes