在湿地或是灌木丛生的树林里，你很难被发现。
In a wetland, or in dense growth, you are very hard to spot.
它能绕过传统的网络安全防御，很难被发现。
It can bypass the traditional network security defense, it is difficult to be found.
谎言其实很难被发现。
流量分析是一种不可见的很难被发现的攻击。
还是说出于某种原因，围绕星团的行星很难被发现？
Or are planets around stars in clusters for some reason just harder to spot?
如果这些控件被当作孤立的单元来分析，就会导致这些缺陷很难被发现。
This results in vulnerabilities that would be difficult to discover if the components were analyzed as isolated modules.
刚开始的时候，变化还是很难被发现，但是可以看到庄稼生长的并不好。
The change was hardly noticed at first, but it seemed as if the crops were not doing so well.
尽管并不能完全隐形，但是它的外形和能够吸收雷达波的外衣使它很难被发现。
While not completely invisible to radar, its shape and radar-absorbent coating made detection extremely difficult.
尽管并不能完全隐形，但是它的外形和能够吸收雷达波的外衣使它很难被发现。
While not completely invisible to radar, its shape and radar - absorbent coating made detection extremely difficult.
病毒很难被发现，其中一个原因是因为他们都很微小——通常只有百万分之一英寸大小。
One reason that viruses can be so hard to find is that they're so small - typically a few millionths of an inch across.
敌方的微型卫星很难被发现，而且它可能就隐藏在一个看上去没有危险的大型卫星里。
An enemy microsatellite would be difficult to detect, and could even be contained inside a larger, harm less-looking satellite.
斑马的条纹是一种隐蔽形式，使斑马在非洲平原上的高高的阴影晃动的草丛中，很难被发现。
Zebra's stripes are a form of camouflage, making the animal very difficult to see in the shadowy tall grass of the African plain.
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。
Technically, rogue AV is often hard to detect because the software is essentially a confidence trick.
大部分物质这其中包括牛奶和水是反磁性的—在正常的情况下它们与磁场的反应太弱了很难被发现。
Most materials, including milk and water, are diamagnetic - their interaction with a magnetic field is too weak to be observed under normal circumstances.
他们只是公布一个总计数字，这样毕业生的个人具体薪酬就很难被发现，免除了关于隐私问题的担忧。
Any privacy concerns could be dealt with by releasing aggregate figures that make it hard to discover individual graduates' salaries.
老虎走在深深的森林草丛里，也很难被发现，因为老虎的毛发与浅黄色草叶和深色阴影交错的颜色是一样的。
When it walks through the long forest grass, it is also hard to see, for its hair is the same colour as the blades of yellowish grass and patches of deep shadow.
它们以毛毛虫和飞蛾为食，但是它们自己却十分安静，一般标准的蝙蝠探测器无法察觉它们，因此它们很难被发现。
They feed on caterpillars and moths, and the bats themselves are so muted that they can't be picked up by standard bat detectors, so they are hard to find.
RTK地方化转换参数是否合适直接影响测量成果的精度，而这种影响在实际上很难被发现，必须采取一定措施。
The parameter of localization for RTK ture or not concerns precision of data directly, furthermore ascertaining the effect in practice is very difficult, we must adopt precaution.
在动物园里见到老虎，你可能认为它们的皮毛颜色亮丽，很容易被发现，但是在它们所生活的丛林里和草地上，老虎是很难被发现的。
If you see a tiger in the zoo, you may think its coat is brightly collared and easily seen, but in the jungles and grassland where it lives, a tiger is hard to see.
“你不需要很大的空间，你可以有弹性的飞行计划”，他说，“如果你家离高尔夫球场有几公里——你只需登上直升机，低空飞行，然后就到了，很难被发现”。
"You don't need much space, and you can have a flexible flight plan," he said. "Say your home is a few kilometers from the golf course - you just hop in your helicopter, fly low, and go there."
“你不需要很大的空间，你可以有弹性的飞行计划” ，他说，“如果你家离高尔夫球场有几公里——你只需登上直升机，低空飞行，然后就到了，很难被发现”。
“You don’t need much space, and you can have a flexible flight plan,” he said. “Say your home is a few kilometers from the golf course — you just hop in your helicopter, fly low, and go there.
食品毒素残留事件由海南最先被发现，虽然早在2004年就已经在海南已经禁用，但是因其低价，并且在偏远、疏于监管的地区很难被发现，但是还是普遍存在化学品的使用现象。
They originated in Hainan, where the chemical was banned in 2004 but remained popular among farmers because of its cheap price and the low risk of discovery in a remote, poorly regulated region.
食品毒素残留事件由海南最先被发现，虽然早在2004年就已经在海南已经禁用，但是因其低价，加上在偏远、疏于监管的地区很难被发现的原因，在海南化学品的使用还是普遍现象。
They originated in Hainan where the chemical was banned in 2004 but remained popular among farmers because of its cheap price and the low risk of discovery in a remote poorly regulated region
大部分被发现的手机是那种预付费的那种，这使得他们很难被追踪。
Most of the phones that are discovered are of the pre-paid variety, which makes them extremely hard to trace.
大部分被发现的手机是那种预付费的那种，这使得他们很难被追踪。
Most of the phones that are discovered are of the pre-paid variety, which makes them extremely hard to trace.
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