There are wide assortments of gifts to choose from.那儿有各式各样的礼品可供选择.A turban for in returning gross would putting two different assortments makes the adornment.包包里还总会放着两条不同花色的头巾作装饰.On the other hand , the enzyme complexes ...
Shelley was advised that the Italian climate would rejuvenate him.有人建议雪莱去意大利,那里的天气会使他恢复活力。The mountain air will rejuvenate you.山里的空气会使你恢复活力.Physicians have tried for centuries to rejuvenate ailing paints with animal orga...
A shoal of porpoises are well on the feed.一群海豚正在吞食.In 1928 some porpoises were photographed working like beavers to push ashore a waterlogged mattress.1928年有人把这些海豚象海狸那样把一床浸泡了水的褥垫推上岸时的情景拍摄了下来.There has long been a superst...
Hypoid gear transmission is the most complicated transmission. The parameters of ma - chinking are hard to cakulate.准双曲面齿轮是齿轮传动中最复杂的, 其工艺锥参数和加工调整计算都涉及两个相错圆锥的相切接触条件.Fixtures are generally mechanical devices used to assist...