随着地球、月球和太阳相对位置的逐渐变化，每年所发生的日食次数也不尽相同，有时候在一年之内会发生多达五次的日食。
Solar eclipses can happen up to five times a year, although each year is different due to variations in the positions of Earth, the moon, and the sun over time.
而且中锋位置上要与霍华德对位，与魔术队的比赛是对目前球队打法的一次严峻考验。
And as with the matchup with Dwight Howard, the Magic offered a very tough test of the progress so far.
毫无办法。我仍然认为他们去年可以再拿一次总冠军，但是凯文·加内特在与保罗·加索尔的对位中就像是个支离破碎的人。
There's no way around it. I still thought they had one more run in them last year, but Kevin Garnett looked like a broken man against Paul Gasol.
这确保了相对位置的精确值设置一次，以后你可以定义一个两者之间的间距。
This ensures that the exact value of the relative position is set only once, and you can later define a spacing between the two.
然后，对管道设计规范和容器设计规范中针对位移应力和二次应力的强度条件进行了讨论。
Then, the intensity limitations for the displacement stress and secondary stress used in the piping design codes and the pressure vessel design codes were discussed.
壳体用卧式加工中心，一次装夹完成所有尺寸的加工，相对位置度更加精确。
The shell is machined by the horizontal machining center, with more accurate relative positions by completing the machining of all sizes through one-time clamping.
壳体用卧式加工中心，一次装夹完成所有尺寸的加工，相对位置度更加精确。
The shell is machined by the horizontal machining center, with more accurate relative positions by completing the machining of all sizes through one-time clamping.
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