The synthetic technology of UF resins under weak acidity condition could reduce the production cost and produce UF resin adhesive with excellent performances.
弱酸性条件下合成脲醛树脂的工艺不仅能降低生产成本，还能生产性能优异的脲醛树脂胶黏剂。
2
A universal spectral modulation sensor with low cost, stable, reliable and accurate performances is presented.
提出了具有稳定、可靠、精确等性能特征的低成本谱适光谱调制传感器。
3
Thus, the pure runtime and the pure migration cost are defined, which are independent of the performances of grid resources.