a combination of a graft polymer formed cr- sbs/mma-aa, reactivmonomer and crosslinking agent with polyurethane gave best adhesion between a wide variety of surfaces.
cr—sbs接枝mma、aa聚合物和活性单体及交联剂与聚氨酯胶的组合,广泛用于各种表面,可产生最好的粘附力。
to apply all the n fertilizer in jointing stage gave best results. the combined application of n and k can increase yield by 42.2%, and n only 25.9%.
另外,增产效果与氮肥施用时期有关,在拔节期一次施氮效果最好,氮钾配施增产42 .2 % ,单施氮增产25 .9 % 。
though i was so shocked when you told me that there is a he in your heart, instead of feeling very sad or despaired, i kept my fingers crossed and gave best wishes to you as i promised.
虽然我是如此震惊,当你告诉我,有一个他在你的心,而不是感到非常伤心或绝望,我不停,我手指交叉,并给予良好的祝愿你,我答应。