length ion of length
2.The using of the F reduce field layer effectively reduce the surface electric field of the device, shorten the length of its drift region, enlarge the choice of range of the ion implant dose of the P layer, and effectively restrain the disadvantageously affection on the breakdown voltage of the interface charge Qss.
3.In this experiment,we studied some fac-ters such as the concentration of dis-infectant,the length of time that boots must soak in disinfectant,the length of time which replacing disinfectant a ndscrubbing of boots before disinfect ion,then sum up a set of effective and scientific method of disinfaction.
4.This article uses the ultraviolet scanning saponification bile,had determined the biggest absorption wave length of saponification bile,and takes this as the ultraviolet examination wave length. The method of abstractiong CDCA by the ion exchange resin was first time studied and high-purity CDCA goods were obtained.
5.Starting from the Kubo-Greenwood formula modified to include ion vibrations under the adiabatic approximation and considering that the low-lying excited normal modes of lattice vibrations are long-wave-length elastic waves, we propose a simple model for phonon-induced electrical resistivity at low temperatures in highly resistive metallic alloys.
