Why does a space shuttle get hotter on reentry than on liftoff?能想象航天飞机穿越大气层时受到摩擦产生的热量有多惊人吗?来一起听听 吧 .Was it really hotter, or was he weaker?是天气比往年热呢, 还是自己的身体虚 呢 ?Hotter water was also better at removing dog dander and pol...
上海的面积比南京大.Shanghai exceeds Nanjing in size.正的面积比同样周长的正多边形的面积大.The circle has greater area than a regular polygon of the same perimeter.圆的面积比同样周长的正多边形的面积大.The circle has greater area than a regular poiygon of the same per...
But many products are not widely available or still need honing.但是,许多产品并不普及,或者仍然需要磨练.Cylinders must be cleaned thoroughly after the honing or Boring operation.镗削和衍磨加工之后,气缸必须彻底清洁.Ultrasonic parallel - axes honing is a new...
There was unrestrained joy on the faces of the people.人们的脸上洋溢着无尽的欢乐。He is vigorous and unrestrained in behaviour.他这个人做事豪放不羁.He raised his head, with a look of unrestrained greed in his covetous eyes.他抬起头来, 一对贪婪的眼光露出馋涎欲滴的...
...tritium, a radioactive isotope of hydrogen.氢的放射性同位素氚Tritium has a half - life of 12.4 years.氚的半衰期为12.4年,地球形成时的氚早已不存在.The Energy Secretary hopes to bring on line a safer new tritium production reactor...能源大臣希望能投产一座更安全的...
IBM is considered the bellwether stock on Wall Street.国际商用机器公司的股票行情被视为华尔街股市的风向标。For decades the company was the bellwether of the British economy...几十年来，这家公司一直是英国经济的晴雨表。University campuses are often the bellwether of cha...
Hardware stores have sold out of water pumps and tarpaulins.五金店内水泵和防水油布已经卖光了。That means providing tents or other materials, including plastic sheeting, tarpaulins and wood.这意味着需要帐篷和其他物资, 包括塑料布 、 放水油布和木材.Each disaster - m...
量程表示无需重调或重装应变计就能记录到的最大应变.Range represents the maximum strain which can be recorded without resetting or replacing the strain gage.使用前, 得人工重调时钟和日期.Before using, you should hand reset the clock and date.再次失去你的应答机编码,请重调编码 3...