The benefits are hard to detect.
其好处却很难被察觉。
Unfortunately, they are hard to detect.
不过遗憾的是，观测它们相当困难。
Even then, the invaders are hard to detect.
即使如此，这些入侵者仍难以觉察。
This makes the original error hard to detect and debug.
这使得很难检测和调试原始错误。
By graphing the results, it wasn't hard to detect a pattern.
通过图表数据显示，不难发现一种模式。
It USES the power of being small and hence hard to detect or control.
这种微型力量使得探测和控制变得异常艰难。
This makes it hard to detect and debug errors in the filter's logic.
这使得很难检测和调试筛选器逻辑中的错误。
Site send patrols every night, but the thief is still very hard to detect.
工地每天晚上都派人巡逻，但是小偷还是防不胜防。
It is hard to detect good luck - it looks so much like something you'll earn.
好运气很难察觉出来，它与你所应得的东西看上去太相似了。
The toxicity of lead can be hard to detect, except in cases of acute lead poisoning.
毒性的铅可以难以察觉，除非发生急性铅中毒。
There will also be much more electronic fraud because it's so hard to detect and prevent.
电子诈骗也会增加很多，因为侦破和防犯都非常困难。
The B-2 is hard to detect via infrared, acoustic, electromagnetic, visual or radar signals.
B - 2无法通过红外线、声音、电磁波、视觉上的及雷达信号跟踪侦查。
But she added that if harmful, or pathogenic, super-small bugs existed they would be hard to detect.
不过，她补充道，如果超小细菌存在着危害，或者致病性，也很难检测出来。
See the photo above for an example. They can be very small and hard to detect, so check thoroughly.
请参照上面的图片，它们可以被做成很小并且不容易被发现，所以请彻底的检查你的电脑。
Technically, rogue AV is often hard to detect because the software is essentially a confidence trick.
从技术上来讲，流氓反病毒软件之所以常常很难被发现，是由于这种软件实际上是一个骗局。
What we're seeing are mats, patties, small concentrations, very hard to detect, but they're out there.
“也许‘浮油块’可能用词不当，”他补充道.“我们所看到油污的是护垫、小馅饼大小的，或者小的浓缩物，非常难以探测，但是它们就在那。”
Like the sun, the planets shift their positions so slowly that their day-to-day motion is hard to detect.
象太阳一样，行星的飘移非常缓慢，以致它们每天的运动很难被察觉。
In film defect detection and reparation, scratch is a common type of film detects which is hard to detect.
在电影胶片降质检测和修复中，划痕是最为常见且较难检测的一种胶片降质。
Now, evidence of the spill is hard to detect. But some beaches still have Valdez oil buried just below the surface.
现在虽然已经很难找到泄露的迹象，但一些海滩表面之下仍有瓦尔迪兹的原油。
Taranis is about the size of a small jet trainer, but with the look of a stealth bomber to make it hard to detect on radar.
“雷电之神”大约有小型喷气式教练机那么大，但隐形轰炸机般的外表使得雷达很难探测到它。
RA can be hard to detect because it may begin with subtle symptoms, such as achy joints or a little stiffness in the morning.
RA很难发现，它开始时有轻微症状，例如关节疼痛或早晨僵硬。
Even worse, these conditions are likely to occur only rarely and sporadically (making the problem hard to detect and reproduce.)
更糟的是，这些情况可能很少发生且具有偶然性(使得问题很难被监测和重现)。
Our Solar System has the most planets of any known star, most probably because it is so hard to detect planets around other stars.
我们的太阳系是已知的恒星星系中拥有行星数量最多的，这很可能是由于在其他的恒星周围探测到行星的存在是非常困难的。
Climate change is all about long term trends, which are hard to detect in a weather record which has very large natural variability.
气候变化是长期的，我们不能用一种天气情况来判断说有大的气候自然变异。
The subtle reservoirs in Banqiao area is hard to detect due to complex underground structure and rapidly lateral changes of reservoirs.
板桥地区由于构造复杂、储层横向变化快，隐蔽油气藏的勘探难度较大。
But conventional methods are unuseful as the tiny displacement is hard to detect under cryogenic environment where superconductor works.
由于超导体需运行在极低温环境，运用常规方法难以对超导体的微小位移进行测量。
I was told the physical signs of dwarfism would be hard to detect at five months old, and I may have to wait until he was two to be sure.
我从这里知道侏儒症的体征在孩子5个月大的时候是无法检测的。 我可能不得不等到他两岁的时候。
On such systems, it is hard to detect (let alone isolate) the root causes of performance or reliability problems, especially in production.
在这样的系统上，很难检测(或者分离出)性能问题或可靠性问题的根本原因，尤其是生产中的问题。
On such systems, it is hard to detect (let alone isolate) the root causes of performance or reliability problems, especially in production.
在这样的系统上，很难检测(或者分离出)性能问题或可靠性问题的根本原因，尤其是生产中的问题。
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