Mariners were also able to fix their latitude by using an instrument called astrolabe.海员们还可使用星盘这种仪器确定纬度。Ideal are like the stars --- we never reach them , but like mariners , we chart our course by them.理想犹如天上的星星，我们犹如水手，...
Helicopters fly in appalling weather to succour shipwrecked mariners.直升机在恶劣的天气条件下起飞前去援救遇难的船员。Mariners were also able to fix their latitude by using an instrument called astrolabe.海员们还可使用星盘这种仪器确定纬度。The ancient mariners tr...
这台仪器可以辨别癌细胞和正常的细胞。The device can discriminate between the cancerous and the normal cells.你可以少花一大笔钱买到顶好的仪器。You can buy perfectly good instruments for a lot less.所有仪器运行良好。All the instruments are working fine....
Behind the habitations, the sandstone cliffs rose abruptly to the north and west.在居住区后面，北边和西边陡然高耸着砂岩悬崖。Ye shall kindle no fire throughout your habitations upon the sabbath day.3当安息日,不可在你们一切的住处生火.The road serves the scatt...
用各种稀的无机酸来萃取阴离子.A variety of dilute mineral acids are used to extract the anions.它对氟离子的选择性比其它普通阴离子高几千倍.It'shows a thousandfold selectivity for fluoride over other common anions.通常, 钙素过量是与该元素相联系的阴离子伴随产生的.In general, e...
There is nothing more annoying than queueing when you only want to pay in a few cheques.没有比你只想存几张支票还得排队更令人恼火的了。As the tabloids have hit on hard times, the cheques of chequebook journalism have shrunk.随着小报纸的不景气, 买断独家采访权的金...
A speckled hen swaggered down the main street of the'settlement ", cackling foolishly.一只花母鸡沿着 “ 居民点”的大街一摇一晃地走着, 一面咯咯地傻叫.This alarmed the hen, which instantly set up a cackling.这下子可惊了母鸡, 它立即咯咯叫了起来.He that would have ...