对于低频率电流（约15，000周秒以内），置有一个叫作磁路的铁心。
For low-frequency currents(up to about 15, 000 cycles per second)an iron core, called a magnetic circuit; is placed.
过去两周，弗朗索瓦已经播出一段30秒的菲亚特广告，画面上洛佩兹穿着露脐短衬衫和褶皱超短裤又唱又跳，还驾驶菲亚特500在城市里自由穿梭。
For the past two weeks, Francois has aired a 30-second Fiat commercial showing a singing and dancing J.Lo plugging the 500 while fetchingly attired in a midriff-bearing blouse and pleated tap shorts.
SOA为不同阶段(秒、日、周或年)控制每个流程实例(工作条目)，并需要各种资源来完成。
The SOA controls each process instance (work item) for a different period (seconds, days, weeks, or years) and has varying resource requirements to complete.
然而，如果考虑旋转动能，情况就不同了，因为这个中子星，旋转一周是33毫秒。
However, if you look at rotational kinetic energy, the situation is very different, because this neutron star rotates in 33 milliseconds about its axis.
第一个是作业限额期限，其值为 604,800秒（1周）。
The first is the job quota period, which is 604,800 seconds (1 week).
但是秒、分、小时、日、周、月却丝毫未动。
But seconds and minutes, hours and days, weeks and months were left unscathed.
所以一周有 604800秒。
在登上帕莎·蒂娜“玫瑰杯”舞台后，他就站着完全不动，在整整90秒钟里只是凝视着四周。90秒！
After shooting onto the stage at the Pasadena Rose Bowl, he stood completely still, staring at the world for a full 90 seconds. Ninety!
周滔：《蓝与红》，2014年，单屏高清录像，16：9，彩色，有声，24分25秒，艺术家和维他命空间提供图片。
Zhou Tao:Blue and Red, 2014, single channel HDV, 16:9, color, with sound, 24 mins 25 secs, Courtesy of the artist & Vitamin Creative Space.
驾车时，保持观察你四周的路况，每5- 10秒钟观察一遍后视镜。
While driving along, keep checking traffic all around you and look in your mirrors every 5 to 10 seconds.
一年中的每一个月、每一周、每一天、每一刻和每一秒都是空的，直到你用快乐把它们填满。
To know the months, weeks, days, hours and minutes of the year are empty until you fill them with happiness.
检验证明该方法能够准确可靠地探测并修复失锁3秒以内的周跳，避免了周跳对载波相位平滑伪距的影响。
This new algorithm can detect and repair cycle slips after loss of lock within 3 seconds so as to avoid the effect of cycle slips on smooth pseudo distance of carrier phase.
依据标准数据，对于孕不到30周的胎儿，更常见的做法是按每10秒增加10次心跳的标准进行观察，而不是按每15秒心跳增加15次为标准。
Normative data suggests that, before 30 weeks, accelerations of 10 bpm sustained for 10 seconds are oberserved more commonly than accelerations of meeting the 15bpm, 15 second-criteria.
要使用的缩放和颜色变量被定义在关键帧的5秒周期内。
The desired values of the scale and color variables are defined within the 5 seconds interval of the keyframe.
滚动宣传视频也会每小时播出六次，每次持续三十秒，四周后，高露洁又将增加一千五百万观众。
Streaming promotion video to run 30-second spots, six-times per hour for four weeks, providing additional exposure of 15 million views.
一停下来，我只听到自己的心脏狂跳不已，四周的叫喊声此起彼落，每过一秒船声就越近。
Once we were still, all I could hear was my heart pounding, the yelling all around me, and the roar of a boat coming closer and closer every second.
科学家们指出，多数脉冲星是双星系统的一部分，自转速度不到20毫秒一周，但是大约30%的脉冲星没有任何伴星。
Most of the pulsars that spin faster than once per 20 milliseconds are part of a binary star system, but about 30% have no companions whatsoever, the scientists note.
该波霎每33毫秒自转一周，其 周期目前正以每世纪1.3毫秒的速率变慢。
The pulsar rotates once every 33 milliseconds and is currently slowing at a rate of about 1.3 millisecond every century.
在登上帕莎·蒂娜“玫瑰杯”舞台后，他就站着完全不动，在整整90秒钟里只是凝视着四周。
After shooting onto the stage at the Pasadena Rose Bowl, he stood completely still, staring at the world for a full 90 seconds.
这是08年的最后一周，记得珍惜一分一秒！
This is the last week of 2008s, don't waste the time, goodluck!
她适应得不错—在第二周开始，她进班房的时候只哭了30秒左右。
She adapted quite well - by the start of week 2, she just cried for some 30 SEC in entering the classroom.
她适应得不错—在第二周开始，她进班房的时候只哭了30秒左右。
She adapted quite well - by the start of week 2, she just cried for some 30 SEC in entering the classroom.
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