If the skew Angle is too high, the barcode can not be detected.

如果倾斜角度太高，条码不能被检测到。

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Consider the hospital, Ms. Wang previously may have been infected with the AIDS virus, but illness in the window period, can not be detected.

院方认为，可能此前王女士已经感染了艾滋病病毒，但病情在窗口期，无法检测出来。

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PMV is an indoor thermal comfort-representing index which is accepted internationally at present, as it can not be detected directly, its application is influenced.

PMV是目前国际上公认的反映室内环境热舒适度的指标，但由于其无法直接检测，故使其应用受到了影响。

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So, when the voltage difference between the plates is zero, or when we just don't have the plates there at all, the cathode rays are not bent, they just go right in a straight line, and they can be detected on this screen.

拐弯来测试它们是否带电,当两板之间电压为零，或者根本就,没有这两个板时，阴极射线是一条直线,它可以在屏幕上。

麻省理工公开课 - 化学原理课程节选

Let's call someting invisible not only it can't be seen, not only it can't be observed, but it can't be detected at all.

让我们把一些不仅是看不见的,不仅是观察不到的，而且是完全检测不到的，东西称为无形的。

耶鲁公开课 - 死亡课程节选

The theory usually is that, even though such a party can be reasonably sure that its cheating would not be detected, it will, nonetheless, be deterred from doing so by the threat that other signatories will take unpalatable retaliatory steps.

CENTERFORSECURITYPOLICY: Center for Security Policy | Submitted Testimony Of Frank J. Gaffney, Jr. Before A Joint Hearing Of The Senate Governmental Affairs Committee And The Permanent Subcommittee On Investigations

The procine circovirus , which can be present in pigs but not affect humans, was detected in some tests of the dead animals, it said.

FORBES: Shanghai Dead Pig Count Hits 5,916, Government Paper Says

Coincidentally, the National Oceanic and Atmospheric Administration (NOAA) has been accurately tracking the number of strong tornadoes for decades (weaker tornadoes are not accurately tracked, because older technology could not detect many of the smaller tornadoes that can be detected today).

FORBES: Alarmists Offer A Perfect Global Warming Challenge