Selection of seal will affect the usage life of seal in great degree.
密封的选用在很大程度上直接影响其使用寿命。
The usage life is the most important economic and technical index of bogie.
转向架寿命是转向架的重要经济技术指标。
It features reliable safety, long usage life, short maintenance time, your best choice.
设备安全可靠，使用寿命长，维修时间短，是一款您理想的选择材料。
Real life usage of languages analysis?
语言分析现实生活中的使用？
Still life shape; Monochrome water powder; Tone confidence; The part depict; Humidity control; Pigment usage.
静物造型；单色水粉；色调把握；局部刻画；水分控制；颜料使用。
Still life shape; Monochrome water powder; Tone confidence; The part depict; Humidity control; Pigment usage.
静物造型；单色水粉；色调把握；局部刻画；水分控制；颜料使用。
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