电热恒温水浴锅
https://www.coleparmer.com/p/cole-parmer-stabletemp-economical-digital-utility-water-baths/64390
Electrical Stable Temperature Water Baths
Electrical Water Baths with thermostatic control

循环恒温水浴锅
https://www.coleparmer.com/p/polyscience-coliform-testing-circulating-baths/59922
Circulating Water Bath with Thermostat

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In fact, nearly all water baths are electrical and with thermostatic control