All carbon footprints are hard or impossible to pin down accurately, but the Internet is a particularly complex case.
所有的碳足迹都很难或者不太可能精确地算出来，对于互联网，情况更是复杂。
See, the firing pin is the key to the whole case!
瞧，那撞针是整个枪的关键！
If it is successful (in this case, the PIN returned by Twitter), it will get an access token with which the client can update the Twitter status on the user's behalf.
如果成功了(在这种情况下，Twitter返回了PIN)，就会获得一个访问令牌，客户端可使用此访问令牌代表用户更新Twitter状态。
The information coming out of Japan changes so frequently that it's difficult to pin down a specific level of radiation that residents are exposed to; in any case, levels vary from place to place.
日本传出的信息经常变化,以至于很难确定居民究竟暴露在怎样的辐射水平下;各种情形下不同的地方辐射水平变化不定。
The Wells Fargo survey painted a more dire picture than most other polls, which typically pin the worst-case retirement age in the mid-to-late 60s.
相比以前其他的调研报告，富国银行的这份报告绘制了一幅更为悲惨的前景，就是需要把退休年龄定在65岁之后。
In August, Kenneth Starr lost his first big case, one that reflected just how desperate he and his staff were to pin something on me.
在8月份，肯尼斯·斯塔尔在他的第一个大案中失败了，这个案子反映出他和他的工作人员是怎样不顾一切地想把一些事情归罪于我。
In this paper, the virtual prototype of fuze setback-pin was established in ADAMS software, the dynamic simulation was made in the case of the accident drop and projection of the cannonball.
文中在ADAMS中建立了引信后座销的虚拟样机模型，分别对勤务处理的偶然跌落和弹丸发射期间的高过载情况进行了仿真计算，分析了仿真结果，得出的结论对实际工程设计具有指导作用。
Complications included pin loosening in 24, pin infection in 4, loss of the reduction in 4, penetration of inner plate of calvaria in 3 and pressure sores in 1 case.
并发症包括颅钉松动（24例）、钉孔感染（4例）、复位丢失（4例）、颅钉穿透颅骨内板（3例）、背心下皮肤压疮（1例）。
This approach can accurately model the feed probe and the shorting pin with variable positions and dimensions and can be used in modeling multi-pin-loaded case.
该方法对任意尺寸和位置的同轴探针和短路探针都可精确模拟，并且可用来模拟多探针加载情况。
This approach can accurately model the feed probe and the shorting pin with variable positions and dimensions and can be used in modeling multi-pin-loaded case.
该方法对任意尺寸和位置的同轴探针和短路探针都可精确模拟，并且可用来模拟多探针加载情况。
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