1. Conclusion The humeral head retroversion angle is markedly variable.

2. The humeral head retroversion angle is markedly variable, the humeral head retroversion angle of shoulder joint prosthetic design should be individual.

3. The glenoid fossa exhibits retroversion and a spiral twist in the horizontal plane, this anatomy property should be considered in the design of shoulder prosthesis.

4. Especially the patient of infecund retroversion of uterine tilting back ward after a few marriage, use an uterus suspensory art, conduce to be pregnant.

5. To evaluate the effect of transepicondylar axis of different position on volume rendering technique measuring the humeral head retroversion angle with multi slice spiral CT.

6. Objective To evaluate the articular surface diameter of the humeral head affecting volume rendering technique (VRT) measuring the humeral head retroversion angle with multi-slice spiral CT (MSCT).

7. The more distal the humerus was, the smaller humeral head retroversion angle defined by a line between the epicondyles on two-dimension CT method was.

8. The 2nd, two legs are the same as shoulder breadth apart, extend double arm, it is axes with the waist, the retroversion before making moves.

9. The conception of media political propaganda had experienced a short emancipation, following the historical retroversion with a serial of political movement after the foundation of the PRC.

10. Advancement historiography is the essential reflection of history process in comparison with the existed advancement historiography, circulation historiography and retroversion historiography.

10. try its best to gather and build good sentences.

11. The teacher translated Latin texts into English which he gave to his students for retroversion.

12. The transepicondylar axis of different position has no effect on volume rendering technique measuring the humeral head retroversion angle with multi slice spiral CT.