试验液体 meaning in English

test liquid

Fibre reinforced plastics - determination of the action of test fluids
纤维增强塑料.试验液体效应的测定
Aerospace series . fibre reinforced plastics . determination of the action of test fluids
航空航天系列.纤维增强塑料.试验液体影响的测定
Low - temperature viscosity of automotive test fluid lubricants measured by brookfield viscometer , method of test for
用brookfield粘度计测定机动车试验液体润滑剂的低温粘度的试验方法
The test liquid shall be at a higher temperature than the nil - ductility transition temperature of the material being tested
这句话这样翻译如何：试验液体温度应该高于材料的零塑性变形温度？