熟女无套高潮内谢视频韩国,女人荫蒂全部过潮喷,老熟妇仑乱视频一区二,蜜芽忘忧草三区老狼大豆

Instrument characteristics

* Single chip microcomputer control, 128*64 bit LCD display

* Large LCD display can display multiple sets of data

* Large memory space to store multiple sets of data and curves

* Automatic adjustment 0, 99% function

* Automatic wavelength adjustment

* Automatic switching of light source and color filter

* Wide sample pool (5mm ~ 100mm)

* It has the function of measuring standard curve of standard sample construction at most ten points

* Can be directly input K, B factor to establish a standard curve for quantitative measurement

* Can directly input the standard sample and the corresponding concentration value to establish a standard curve for quantitative measurement

* Can save the standard curve parameters of measurement Settings with power off

* Equipped with universal parallel printing interface, can print title bar, measurement data, curve parameters, curve standard sample points and curves

* With USB port

* More accurate and flexible measurement requirements such as spectral scanning can be realized through PC software control (optional UV-1300, standard UV-1300PC)