通过推导,找到双棱镜干涉实验中虚光源间距的最佳测量位置,从而减小间接测量引入的误差,提高测量精度.The optimum measuring position of virtual source in Fresnel double prism experiment is found by derivation.通过实验结果作出正交双棱镜干涉的光强度分布曲线.The distribution curves of light intensi...
The tenor was a pupil of a singer.这位男高音歌手师承一位歌唱家。A bonus of up to 5 per cent can be added to a pupil's final exam marks as a reward for good spelling, punctuation and grammar...小学生期末考试的分数最多可以加5分，作为对其拼写、标点和语法正确的奖励。As...
He thought he had made an end of the little grasshopper.他以为把那个小蚱蜢干掉了.I've known him since he was knee - high to a grasshopper.他很小的时候我就认识他了.I haven’t seen you since you were knee-high to a grasshopper!我上次见你你还是个小不点呢！C...
The housemaster fixed Jack with a decidedly hostile look.房东恶狠狠地瞪着杰克.It's better that the housemaster guides the children when they are watching TV.孩子看电视时最好有家长在旁边指导....
体内所有的细胞与组织都从增加的氧气吸入量中受益。All the cells and tissues in the body benefit from the increased intake of oxygen.同类几何量中彼此之间并非都是可通约的.Not all geometrical magnitudes of the same kind are commensurable with one another.加压素 - 一种抗控制的...
Such is the case in pyrrole, thiophene, and furan.吡咯, 噻酚和呋喃的情况就是这样.It'shows that the key step is the synthesis of 4 - methyl - dihydro - furan - 2 , 3 - dione.研究结果表明关键步骤为原料 4- 甲基 -2, 3- 呋喃二酮的合成.A novel furan resin w...