Using laser schlieren device,convective structures at the interface in mass transfer process of absorption and desorption of CO2 by ethanol were observed in both parallel and vertical directions to the interface.

Using Laser Schlieren device, the interfacial convective structures caused by gas - liquid mass transfer in the interface during the diffusion process of ethanol aqueous solution were observed under different liquid states of quiescence, horizontal flow and falling film.

Analysis of convective clouds characteristic in Ningxia;

,the characteristics of parameters and evolutive regularities of convective cloud in the mid-mountain region of southern Urumqi were analyzed in this study,including the echo top,and its intensity,occurrent periods,nat.

It is very meaningful to separate the precipitation cloud system into convective cloud and stratiform cloud.

The convection cloud is the main precipitation system in south China,having abundant water resource.

For researching the rule of convection cloud in Jianghuai area, we used Dual-doppler Radar in the experiment of weather modification about convection cloud.

Hail s strength are associated with convective cloud s evolution and strength.

The first strong precipitation is caused by strengthening local convective clouds generated in the subtropical high,vapor transportation and dynamic conditions offered by strengthened easterly flow in bottom of the troposphere air promote the development of convection;New clouds in the humid air environment will be rapidly strengthened and developed.