Cause: The front wheel fastening nut is loose; the front wheel bearing clearance is too large and is damaged by the impact, “bite†the front axle; the front axle and bearing dry friction or long-term lubrication is bad, resulting in damage. Exclusion: Replace the front wheel bearing,
a) Requirements for construction of duck and duck houses 1. Site selection requires quietness, cleanliness, isolation, independence; high ground and dry ground; away from villages, sewage ditch, factories and mines. 2. The duck house requires cool in winter and cool in summer, fresh air, good he
Advanced Cell Technology Inc. of Worcester, Massachusetts, USA, has conducted a stem cell therapy trial among 22 blind people since 2011. All subjects have improved their vision, and one of them even recovered. normal status. Those who participated in this experiment had atrophic age-rela
In the daily use of equipment such as universal crusher, coarse crusher, and micro-grinder, some small problems can generally be checked and maintained by themselves, and manufacturers are not required to save time and improve production efficiency. Usually check and repair from the following three
In agricultural production, pests are generally easier to find, easier to identify, and easier to control. Therefore, the relative damage is relatively small. However, in individual years, due to the migration of adults, coupled with more appropriate climatic conditions, there have also been years
For more than a decade, the development of Taiwan's medical device mold industry is something we have witnessed. It is understood that in recent years, Taiwan's medical devices have been developing very rapidly and market sales have continued to innovate. This has greatly driven th
Release date: 2013-04-01 According to foreign media reports, the endoscope has fundamentally changed the medical treatment. The doctor can use a miniature camera to attach the end of the wire thickness of the wire, and it is possible to spy on the internal organs of the patient without major su
Before rice transplanting, we must first prepare land. Use a rotary cultivator or leeches to level the field surface and the height difference should not exceed 3 to 5 cm. The time for soil preparation should be determined according to the transplanting time. The soil is planted 1 day before the t
The giant salamander is commonly known as the giant salamander, and it is a national second-level key protected wild animal. Our country has expanded its efforts to eliminate Xinjiang, Tibet and Inner Mongolia. Although Heilongjiang, Jilin, Liaoning, and Taiwan have not been reported, they are dis
Grape has four major health benefits: 1. The sugar in the grapes is mainly glucose, which can be quickly absorbed by the body. When the human body has hypoglycemia, if the grape juice is consumed in time, symptoms can be relieved quickly. 2. French scientists found that grapes can prevent thromb
Grape has four major health benefits: 1. The sugar in the grapes is mainly glucose, which can be quickly absorbed by the body. When the human body has hypoglycemia, if the grape juice is consumed in time, symptoms can be relieved quickly. 2. French scientists found that grapes can prevent thromb
It is about to usher in one of the 24 solar terms, the "small full" solar terms. Experts in astronomy warn that small-scale solar terms are the beginning of hot summer, and the public should pay attention to doing a good job in preventing heatstroke. At the same time, the public should p