她出神地看着小窗子外面的蓝色地平线。She stared dreamily out of the small window at the blue horizon.陆地在地平线处变成了一片浅灰。At the horizon the land mass becomes a continuous pale neutral grey.很快他们就成了地平线上的几个小点了。Soon they were only dots above the ha...
本文研究高屈光度眼用透镜消除离轴像散的非球面化模式.In this paper, model of aspherisation for higher - dioptry spectacle lens is investigated.在腔内插入一定厚度的布儒斯特片可以部分消除腔的像散.The resonator ( astigmatic ) can be compensated by inserting a suitable thickn...
Thirty seconds later she reappeared and beckoned them forward.30秒后她又出现了，示意他们往前来。Hughes beckoned him to sit down on the sofa.休斯示意他在沙发上坐下。Hughes beckoned him to sit down on a sofa.休斯示意他坐在沙发上。...