N curves of sorts of metals under general condition have been maturity. But the S N curves considering the effect of corrosive environment are reported.
目前常规条件下各种金属材料的S-N曲线已基本完备，但是考虑腐蚀环境影响的S-N曲线还很少见。
At the mean time, D fertilizer particle microcapsules were made with higher content of K but median content of N to meet the demands of tobacco plant at middle and later stage and promote maturity.
同时，为满足烟株中后期的养分需求及促进成熟落黄，制作重钾适氮的缓释肥包膜D粒子。
应用推荐