It can have different meanings, depending on how it is used. A common meaning of refractory is a type of concrete intended for use in very high heat conditions, such as the inside of a furnace. These materials must be cured (allowed to "set up") at controlled temperatures before being exposed to very high temperatures.
refractory Concrete means refractory castable == ==
Because of Changxing Refractory's largest investment, Yilong Refractory was renamed as Changxing Refractrory.
1) The virus was refractory to the medication. 2) The refractory class was unable to get anything done.
Refractory Engineers Indianapolis Indiana 3172732000
magnesium-dolomite based refractory
The only change of Yilong Refractory is its name which has changed into Changxing Refractory. Its product quality, pre-sale and after-sale services remain unchanged.
Refractory period
Refractory insulation is defined as insulation for extremely high temperatures. The threshold of temperature of insulation for refractory insulation is > 815 Celsius.
refractory period is the interval between action potential , the absolute refractory period is the period in which second action potential can not be initiated but in relative refractory period the second action potential can be initiated by the more strong stimulus.
SiO2 refractory
Super Refractory is a refractory material which retains its shape and chemical identity in extreme heat, so super refractories are used in Industries for heat resistance.
After the generation and propagation of an action potential along a neuron, the cell becomes depolarized to the point where there is no potential for further signaling until the cell re-polarizes through the action of ion pumps. This very brief period is called the refractory state.