The deformation information is obtained from ultrasonic echo time delay.

软组织的形变信息是通过超声回波延迟时间得到的。

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The direction of longest echo time is the direction of minimum earth stress, and the direction of greatest earth stress is perpendicular to it.

回波时间最长的方向为最小地应力方向，最大地应力方向与之垂直。

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He provides an astute observation: the major expense for some Echo Boomers at this time is paying on their student loans.

FORBES: Will Student Loans Delay A Major Housing Recovery?

Across the uncertain ways of space and time our hearts echo those words.

WSJ: Thomas Fleming: An English Thanksgiving, 1942

When the pair meet for a second time at the ECHO Arena, the vacant British title will also be on the line.

BBC: Tony Bellew aiming to beat Ovill McKenzie in style