The green agrochemical contains light - sensitive pesticide, trans - gene pesticide , biopesticide, etr.绿色农药包括手性农药 、 光敏化农药、转基因农药 、 生物农药及绿色农药制剂等.Some possibility because the agrochemical sprayed the excessiveness, the per...
可以实验测定氘的结合能.The binding energy of the deuteron can be found experimentally.更为活跃的是氢的较重同位素, 氘和氚.More reactive are the heavier isotopes of hydrogen, deuterium and tritium.对于单晶,氘化的这种优点并不是必不可少的.This advisability of deuteratio...
He was at a party all night and felt the aftereffects,a headache and a stomachache,the next day.他在晚会上玩了个通宵,第二天才觉出头痛、胃痛的后果。He was at a party all night and felt the aftereffects, a headache and a stomachache, the next day....
Pearson massaged his red-dened cheek.皮尔逊揉了揉自己泛红的脸颊。Mr. Pearson's income allows of no extravagance in his way of living.皮尔逊先生的收入不允许他过奢侈的生活.Professor Pearson gave the inaugural lecture in the new lecture theatre.皮尔逊教授...