剃齿前加工齿轮齿形用的滚刀称为剃前滚刀。
Before shaving teeth gear tooth shape of processing with hob called before shaving hob.
更有效的税收方式应是以食品成分在加工前的成本与食物成品价格之差为税基对食品生产商课税。
A more efficient tax would be a tax on producers of food, based on the difference between the cost of the ingredients before processing and the price for the finished product.
拍摄组成此图的各个组图共用了8个小时，并在拼接在一起前经过了广泛的加工。
The images comprising the Mosaic, taken over about eight hours, were extensively processed before being joined together.
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