用“water hardness”造句大全，water hardness造句
The first-level softening resin filter, can effectively remove scale to achieve less than 50 mg in water hardness.
This process removes the water hardness.
Objective the different source of the water hardness were measured by the coordination titration.
boiler water hardness
Yangzhou has a simple and transparent character of water, fresh and lively spiritual water, water hardness and softness in temperament.
German water hardness
The performance of synergistic scale inhibition was investigated in different water temperature, magnetic field intensity, water hardness and concentration.
The degree of hardness or the water hardness you will get to know from your responsible waterwork.
Application of ion exchange softening method, can make steam boiler feed water hardness meet eligibility criteria.
