The phrase "are placed back into" is correct and usable in written English.
It can be used when describing the action of returning items or elements to a previous location or state.
Example: "After the experiment, the samples are placed back into their original containers for storage."
Alternatives: "are returned to" or "are put back into".
"It's not like the collectors are being exceptionally effective". The Consumer Financial Protection Bureau estimates that, in some cases, the Education Department pays private collection agencies nearly $40 in compensation for every $1 in cash recovered from some borrowers whose loans are placed back into repayment through a rehabilitation program.
The next day, your lunch hour passes by again without food, and at 1 00 P.M. you are placed back into the Skinner box.
If you are placed back into the side for a match, make sure you're on your best behaviour.
The leaf was placed back into the box and placed inside an AR-75 Percival Scientific growth chamber (Percival Scientific, Boone, IA, USA) with constant fluorescent-incandescent light (200 μmol m−2 s−1) and temperature (27 °C).
Uterine horns were placed back into the abdominal cavity after electroporation.
(d) The insert is placed back into a 12-well plate after 2 h incubation at 37 °C/5% CO2.
In A. cerana, natural wax combs are not built on wooden frames so they cannot be placed back into their colony of origin to be capped naturally.
The animals were tested individually during the sucrose consumption, and they were placed back into their respective group-housing cage immediately after the test.
Once riced, the potatoes can be placed back into a pan and heated gently while you stir in cream, butter, olive oil, herbs, or whatever you like.
After CPA exposure and vitrification, surviving oocytes that were treated before completion of the 44 h maturation period were placed back into IVM medium for the remaining maturation period, and matured oocytes were incubated for 2 h.
