为了减少颗粒滞后损失而成型的喷管是没有多大发展前途的。
Contouring nozzles to reduce particle lag losses does not appear to be appealing.
商业地产的损失一般滞后失业率的上升大约1年左右，主要因为租期保护了房主免予租金收入的立即下降。
Losses on commercial property tend to lag behind rises in the unemployment rate by a year or so, largely because lease terms protect landlords from immediate falls in rental income.
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