RESULTS:The physical parameters of underwater blast wave were characterized by high peak pressure, short positive duration and great impulse.

结果：水下冲击波物理参数的特征表现为高的峰值压力，正向持续时间较短，冲量较大。

youdao

The duration value can be either a positive or negative value.

持续时间值可以是正数，也可以是负数。

youdao

Positive as it does, the academic chair that is divided into antemeridian and PM, duration 8 hours, don't make the body feel the slightest exhausted and lifeless, almost no one midway return a field.

正因为如此，这场分为上午和下午、持续时间近8小时的讲座，没有令人感到丝毫的疲惫与枯燥，几乎没有人中途退场。

youdao

Frankly, I doubt that the duration and rate were major issues, but they provided an opportunity to have a positive announcement effect to show that major central banks were supportive of the European situation.

FORBES: The Fed's Recent Action on Swaps