按照SCI要去润色这段话：The TmHoYAG crystal rod is placed in a glass tube and cooled by water at 12 ℃ Deionized water flow though bonded copper heat sink to regulate the temperature of LD arrays which is maintai

The Tm,Ho:YAG crystal rod is housed within a glass tube and effectively cooled by a water source maintained at a temperature of 12 ℃. To regulate the temperature of the LD arrays, deionized water is circulated through a bonded copper heat sink, with the temperature being kept at a steady 20 ℃. Additionally, two external water coolers are employed to ensure temperature accuracy within 0.2℃.