1. Tillering is an important agricultural trait of rice yield, and it is a model system for studying on molecular mechanism of branching of endogen.

2. The result indicated that, the influence of vehicles load position as well as the bridge structural style is extremely limited to the bridge paving endogen force.

3. The thesis is based on the existing theory about the design and calculation of anti-slide piles especially when engineers adopt K method for getting the endogen force of anti-slide piles.

4. The analysis indicated: because the randomness of random traffic flow samples was violent, the endogen force and deflection of arch rib and deck and also the impact coefficient fluctuated violently.

5. The software about the frame design, apply the stiffening bar method and elastic foundation method to account the endogen.

6. The experiment showed that the method could identify acerose endogen weed correctly.