1. The connecting rod feeding mechanism is adopted, and the thread take-up hooks of the connecting rod and the upper and lower shafts are driven by spiral bevel gears, which is fully lubricated.

2. Objective To explore the spiral manifestations and diagnostic value of mechanical intestinal obstruction.

3. With the help of the principle that the specific gravity of solid particles is different and the precipitation speed in liquid is different, the spiral classifier cleans and classifies the mixed ore.

4. The utility model relates to an ultra-flat ruler, which consists of an adjusting screw, a fixing bracket, a screw, an ultra-flat plate, an ultra-flat ruler, a horizontal mark and a bracket.

5, spiral welded steel pipe size from 6 inches to 36 inches.

6. By giving the vibration mode function and the corresponding boundary conditions, the frequency and vibration mode of the spiral tube sector structure are determined semi-analytically.

7. They found that a spiral airflow formed on Samara's thin wing, which produced a rising force. The specific working principle is like a mini hurricane attracting Samara to fly upwards.

8. The planet swam in a spiral to the orbit it now occupies.

9. This exact spiral also exists in nature. For example, the leaf order distribution of shells and some plants conforms to the golden spiral.

10. In order to detect the weld defects of spiral steel pipes in radiographic images, a new real-time automatic detection algorithm is proposed.

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12. Books bound with plastic coils, spirals and double-ring iron wires can be folded up and used conveniently.

13. The spiral conveying system is suitable for short-distance transportation of shaved ice.

14, it is said that the result of this high gradient is consistent with a long-standing but unconfirmed view that the star main disk of spiral galaxies is formed from the inside out.

15, she is wearing a dark brown plush coat, a beige screw cap and gloves with four fingers together, just like a little brown bear.

16, these are the support coil springs and insulation pads.

17, in fact, Chinese teaching is related, and it is a kind of "spiral upward" learning.

18. The machine connects the spiral plate tooth threshing drum, the upper cleaning fan and the lower axial fan with a vertical shaft, and drives them to rotate.

19. leptospirosis can be treated with antibiotics if it can be diagnosed correctly. Unfortunately, this is often not the case in reality.

20. In the northeast of the camp, there was the sound of helicopter propellers rolling.

2 1, and points out the problems that should be paid attention to in the geometric size design of involute spiral spline shaft.

22. Two capsule filling production lines can fill spirulina capsules of various specifications.

23. In view of the reliability problems faced by vehicles equipped with hydro-pneumatic suspension in practical application, a composite suspension with hydro-pneumatic suspension and spiral spring is proposed to provide elastic force.

24. So many hospitals have cancelled some cheap anti-inflammatory drugs, such as acetylspiramycin tablets, norfloxacin capsules, midecamycin and erythromycin.

25. On the basis of the above work, the microcomputer control of continuous production process of spiral submerged arc welding is realized.