美国的领土扩驰是朝哪个方背的？
What was the directional flow of U. S. territorial expansion?
美国须要一个新的方背。
介绍了地线工程设计中常用的两类综开方式；谈论了地线方背性解数的盘算和驻波带阔盘算。
Introduced two synthesis approach which are commonly used in antenna design engineering, discussed the calculation of directional coefficient and the standing waves bandwidth.
他们千方百计为因洪水而离乡背井的难民们重建新家园。
They tried every way possible to reestablish the refugees uprooted by flood in new homes.
有一次方老师上课，提了个问题：“谁来背一背《绝句》？”
There is a teacher, a question: "who is reciting" quatrains "?
第一高密度区位于视网膜鼻侧偏腹方，第二高密度区位于颞侧偏背方。
The first high-density area is located slightly ventrally at the rostral side, the second one slightly dorsally at the temporal side.
对 所述多个齿的至少一个和所述背铁在选定部分内进行退火，以便改进 在不同于所述一个方向的第二方向内的磁通量传送。
At least one of the plurality of teeth and the back iron is annealed in selected portions so as to improve magnetic flux transmission in a second direction, different from the one direction.
对 所述多个齿的至少一个和所述背铁在选定部分内进行退火，以便改进 在不同于所述一个方向的第二方向内的磁通量传送。
At least one of the plurality of teeth and the back iron is annealed in selected portions so as to improve magnetic flux transmission in a second direction, different from the one direction.
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