Tests of seed-base for afforestation on saline-alkali soil by sea;

Taking a badly seashore saline land in the city of Tangshan as an example,adopting some measures,such as sowing by seed-bases to breed seedlings,building stair-fields,transplanting seedlings in carrying soil columns etc,a new technology of seed-base for afforesting was developed in seashore saline land.

The phase retstdation of a ray with various incident angle transmitted through a optical-disk substrate was investigated on the theory, as well as the experiment,Birefringence of the PC and glass disk substrates was measured by -using the polarized phase modulation method which be in PMCSA form.

MgO-Al2O3-SiO2 glass ceramic is an excellent potential material for hard disk substrates with good mechanical properties,and it can essentially meet the requirements of hard disks with higher storage capacity and higher rotation speed.

Then its CMP properties on hard disk substrate with nickel-phosphorous plated was studied.

Chemical-mechanical polishing of hard disk substrate with nickel-phosphorous plated in the prepared nanometer SiO 2 slurry was studied.

Chemical mechanical polishing(CMP)is widely used to obtain the atom-scale planarization surface in the manufacturing of computer hard disk substrate.

Development of a new pattern hoisting tool system for subsea template;

In order to reduce the effect of sea ice on wellhead platform, a new type subsea template structure is developed based on existing wellhead platform forms (for example, CB246 wellhead platform), which combines riser with template.

This guidance system settled the guiding matter easily and efficiently in process of landing the subsea blowout preventer by adding on guiding ropes with iron hook specially made and shoulders pre-welded on the subsea template while omitting guiding base plate.