通过五项新型设计，该探轮的技术水平应为目前国际同类产品最高速度水平。
As compared with same international detectors used for railway ultrasonic inspection, this new one has 5 new designs that have the highest speed.
到了时速二百五十英里，他觉得已经接近水平飞行的最高速度。
At two hundred fifty miles per hour he felt that he was nearing his level-flight maximum speed.
有评论说，这架碳纤维的飞行器最高速度达到68节（水平速度），平均速度为23节，飞行高度最高为海拔8546米。
The carbon-fiber aircraft reached a maximum speed of 68 knots (groundspeed), an average speed of 23 knots and a maximum altitude of 8, 564 metersabove sea level, a statement said.
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