In recent years, with the continuous acceleration of urbanization in my country and the continuous rapid development of urban infrastructure construction
The heat flow meter is also called "heat flux meter ", which is a quantitative detection instrument for heat transfer process
Sulfur dioxide is a colorless and transparent gas with a pungent odor Soluble in water
Vacuum glove box is a kind of laboratory equipment that fills high-purity inert gas into the box and circulates and filters out the active substances in the box
With the development of modern biotechnology, biosafety has attracted the close attention of scientists and technicians
一 Environmental butler serviceAt present, national, provincial, municipal, mobile monitoring and other multi-level
At present, the situation of infectious disease prevention and control is still severe, the threat of traditional infectious diseases still exists
According to data from the Environmental Protection Association, indoor air pollution levels may be 2 to 5 times that of outdoors,
The new JRC NJU77903DL3H high endurance large output rail-to-rail input and output CMOS operational amplifier
NJU77903DL3Z2-TE2 high endurance large output rail-to-rail input and output CMOS operational amplifier JRC
JRC operational amplifier NJU77903DL3-H high endurance large output rail-to-rail input and output CMOS