化学家们在实验室合成有机化合物的时候，常常会得到一堆分子：一半右旋，一半左旋。
When chemists synthesize organic compounds in the lab, they often wind up with a mix of molecules: half are right-handed, and half are left.
如果你选了有机化学课，你会对它有更多的了解，但是，实际上，你可以继续制造出一堆，其它不同类型的有意思的分子。
You'll learn a lot more about this if you take organic chemistry, but, in fact, you can then go on and make a bunch of other different kinds of very interesting molecules.
堆填区的环境不适合有机体，经过一段时间它们通常会把木材分解。
The environment in the landfills was not suitable for organisms that normally break down wood over time.
我被一堆人推来挤去，才终于有机会和人力资源经理说上话。
After pushing through the crowds, I finally got the chance to speak to a human resources manager.
我们还参观了反应堆附近的应急指挥中心，这让我们有机会一睹那些工作人员的风采。
We also visited an emergency operation center near the reactors—a rare chance to see the faces of the workers who risk their lives every day.
这个野营隶属于下面山谷里的一个有机农场。有时候我们会堆草垛或者拔草。
The camp was affiliated with an organic farm in the valley below us where we would sometimes work baling or weeding.
但正压强制通风能加快堆料含水率的降低和有机质的降解。
However, the positive forced aeration could accelerate the moisture content reduction and the organic matter degradation of mixtures of sewage sludge and amendment.
堆火的好处在于它既够在平整暴露的岩石地面进行，又可以在象干草落叶一样的有机物轮廓进行。
The advantage of the mound fire is that it can be built on flat exposed rock or on an organic surface such as litter, duff or grass.
通过模拟试验研究了鸡粪和奶牛粪肥堆腐过程中有机酸的种类、含量和变化规律。
It was studied of kinds contents and changes of organic acids in the composting of hen feces and dairy manure.
可以用作核反应堆的冷却材料，有机合成的还原剂。
It can be used as nuclear reactor cooling material and the reducing agent in organic synthesis.
如果把一台机器全部拆散开来，这台机器便成为一堆如螺母、螺钉、弹簧、齿轮、凸轮、轴等简单部件—即所有机械的构成单元。
Thus, if a machine is completely dismantled, a collection of simple parts remains such as nuts, Bolts, springs, gears, cams, and shafts the Building Blocks of all machinery.
这些游戏述说着史诗，围绕着你展开这大场面的战斗，或者让你有机会站在一大堆尸体上仰望远方。
These games are all about epic, large-scale battles with you (and maybe a pal or two) in the centre, or on top, of a pile of corpses.
你没什么特别，你不漂亮也普通不过的小草(雪花)，你只是一样的有机物而已，没什么区别，我们只是一堆垃圾一部分而已。
You are not special. You are not a beautiful or unique snowflake. You are the same decaying organic matter as everything else, and we are all apart of the same compost heap.
你没什么特别，你不漂亮也普通不过的小草(雪花)，你只是一样的有机物而已，没什么区别，我们只是一堆垃圾一部分而已。
You are not special. You are not a beautiful or unique snowflake. You are the same decaying organic matter as everything else, and we are all apart of the same compost heap.
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