The ceiling may have wood reflectors, or a few boxes filled with environmentally-safe fiberglass material may hang from the ceiling to stop any ringing caused by the ceiling.
天花板上可能会有木制反射面，或者有一些用环保玻璃纤维填充的小盒子悬挂在天花板上以防止由于天花板带来的任何响声。
According to the problem that the remove of fiberglass is worse than metal material, grinding head with diamond abrasive is used to process the fiberglass column in this paper.
文中主要针对玻璃钢件切削加工性较差的问题，采用带有金刚石磨粒磨头对玻璃柱件进行加工。
As a new type composite material, fiberglass reinforced plastics has been used in many industries.
作为一种新型复合材料，玻璃钢正在被广泛应用在各个行业。
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