The main advantage of powder metallurgy sintered gear is high precision, tolerance, low noise, good wear resistance, low cost, suitable for mass production.
粉末冶金烧结齿轮的主要优点是精度高，公差小、噪音低、耐磨性好、价格低廉，适合于大量生产。
The volunteers were divided into four groups according to their body mass index (BMI) and glucose tolerance.
根据体重指数和葡萄糖耐量将志愿者分为四组。
Superabundance of salinity in the soil imperils the growth of the mass of plants, especially does more harm to croppers which have lower tolerance to salinity.
土壤中盐份过多会危害大多数植物的正常生长，尤其对耐盐性较低的农作物危害更大。
Superabundance of salinity in the soil imperils the growth of the mass of plants, especially does more harm to croppers which have lower tolerance to salinity.
土壤中盐份过多会危害大多数植物的正常生长，尤其对耐盐性较低的农作物危害更大。
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