We measured, compared and analysed the formant relative amplitude of 30 pairs of twins natural reciting voice, and counted the confidence level and discriminating threshold.

Three groups of samples take the test, the ratio of relative peak torque of shoulder, hip and knee joints is compared and analyzed.

The result shows that the elbow flexor/extensor relative peak torque, the relative total power and relative average power decrease with the increase of velocity.

A Study on Evaluation of Relative Strength for Different Polymer Gels Used at Oil Fields;

The early-age relative strength-simplify maturity equation was concluded from this research and the relative strength when simplified maturity reached 600d was discussed.

Based on the preliminary researches on tube clearance, overdistension measure, total distension measure, weld relative strength, destructive pressure test in producing copperaluminum combined columnwingtype radiator, discusses crucial skills to improve the technical and provides the basis for manufacture and standardization of the radiator.