... forced expiratory volum during one second 释义：第一秒用力呼气量 millimeters per second 释义：毫米/秒 nanosecond 释义：毫微秒,纳秒 ...
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PalmVelocity — The speed of the palm in millimeters per second.
以毫米每秒为单位的手掌移动的速度。
Using radiation pressure and optical dipole forces, atoms that roam in gases at a few hundred meters per second are now routinely slowed down to velocities of a few millimeters per second.
光的电偶极辐射能够使正在空气中以每秒数百米飘逸的原子的速度迅速下降到每秒几毫米。
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