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However, some parents may find it troublesome to run a hospital for such a small thing, so they get the baby. In fact, it's dangerous. First, because there are no ear lamps in the general family, parents can only follow the feelings, which can easily cause local damage. The second reason is that many babies haven't learned to cooperate, and may move around. Three, once in the process of digging the ear, accidentally have a force impact, such as someone accidentally touching the mother's hand, and so on, could Pierce the eardrum.
Flavor chance to the rescue:
Wide provided suitable for busy trunk, also can be laid in tunnel and station floor maintenance difficulties, stone or soil subgrade are laid, but the mud pumping in the diseases of roadbed must be laid on the roadbed diseases after renovation. The main advantages of the wide sleeper circuit are: the suborbital sinking is small. The vibration acceleration is smaller than the concrete sleeper line, which gradually slows down and stops after laying. So the line maintenance work is greatly reduced, about a third of the general concrete sleeper line. The track is easy to keep clean. Dirt is not easy to break into the bed and prolong the repair cycle of the route. The line is smooth and stable, which is conducive to high-speed operation and the laying of seamless circuit. The disadvantage is that the cost is higher, and it is more difficult to change the shop on the busy trunk line
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