秒

The following results are found: Talbot self-imaging effect will appear when the full width at half-maximum of the incident short-pulsed light Δτ is within picoseconds and it will be gradually diminished at Δτ becomes small.

当激光脉冲的Δτ从皮秒逐渐减小时，塔尔博特自成像现象逐渐消失。而当激光脉冲的Δτ小于几十个飞秒时在第一个塔尔博特距离处光栅的衍射光强的最大值随Δτ的减小而减小。

The temporal evolution in transient reflectivity change ?嵇/R is composed of two relaxing parts: a fast component with time sub picoseconds and a slow component with time constant ranging from tens of ps to hundreds of ps.

瞬时反射率的变化主要由两个部份所构成：弛缓时间在次皮秒级(sub-picosecond)的快弛缓行为，以及弛缓时间在数十到百个皮秒的慢弛缓行为。

At present, laser process technology develops fast, since a laser light can obtain many good characteristics such as good direction, high energy density to focus the beam at a micrometer level, small pulse width ranging from dozens of Nanoseconds to dozens of Picoseconds, heating material immediately, decreasing heat effect on materials and so on.

由于激光束具有良好的方向性和高能量密度，可将光束聚焦到微米量级；由于激光束的脉冲宽度可达数十纳秒到数十皮秒，能够快速加热，对材料的热影响效应减小；因此，激光的以上优点为微加工提供了有利的条件，同时也促使激光加工技术迅速发展。

Retests that were conducted a couple of hours later showed that those taking naps could navigate the maze some 30 seconds faster on average, with the biggest performance improvement being 90 seconds.

几小时之后再次测验的结果发现，有睡午觉的人走迷宫的速度平均快了30秒，进步最多的可以增加到90秒。

The helicopter is nothing more than a controlled flat spin (spinning the glider at stall point, very low speed). The wing rotates along the center of the glider while the pilot is straight below the glider. During the maneuver the glider acts like a helicopter. The vertical speed is very low, usually somewhere between -1.3 and -2.0

直升机其实就是一种处于可控状态的水平螺旋－－即在非常低的速度下，失速速度下的spin；伞以自身的立轴为轴心旋转，而飞行员处于伞的正下方一起旋转；在动作中，伞看起来像直升机的旋翼一样转动，故得名：直升机；该动作的垂直速度非常低，大约为在1.3米/秒到2米/秒之间。

After a short warmup, alternate all-out effort for 30 seconds and a recovery pace for 90 seconds for 20 30 minutes.

在一个简短的热身之后，交替进行30秒的全力运动和90秒的恢复性步伐练习，持续20到30分钟。

A unit of astronomical length based on the distance from Earth at which stellar parallax is one second of arc and equal to 3.258 light-years, 3.08'×03 kilometers, or .98 × 0 3 miles.

秒差距：天文学自地球起的距离单位，星视差为角秒，等于3.258光年，3.08'×03公里，或。98×0 3英里

This artificially induced plasma depletion can then be used to investigate other space phenomena, such as the growth of the plasma instabilities or the modification of radio propagation paths. The 47 second OMS burn of July 29, 1985, produced the largest and most long-lived ionospheric hole to date, dumping some 830 kg of exhaust into the ionosphere at sunset. A 6 second, 68 km OMS release above Connecticut in August 1985, produced an airglow which covered over 400,000 square km.

这一人工诱导离子损耗之后能够被用于研究其他的太空现象，比如离子不稳定性的增长或者无线电传播通道的改变。1985年7月29日47秒的轨道操纵系统的燃烧产生了迄今为止最大和最长期的电离层空洞，将大约830公斤的废气在日落时倾倒入电离层。1985年8月康涅迪格上空6秒种、68公里的轨道操纵系统的排放产生了覆盖40万平方公里的气辉。

Every second of day it is coming your way, future unknown is here to stay.

一秒一秒都是你自己的路，未知的将来在这里停留

The nonlinear optics performance of fullerenes in femtosecond time-scope was studied by using femtosecond time-resolved optical Kerr effect.

3利用飞秒时间分辨光克尔实验证明了富勒烯分子体系在飞秒时域内的三阶非线性响应并不大。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。