当这个项目被当作外部的项目引用或者当进行跨项目跟踪时，这个前缀就可以当作项目需求和需求类型的标识符来使用(请参见列表3)。
The prefix is used as an identifier for requirements and requirement types in this project when it is referenced as an external project for cross-project traceability (see Listing 3).
全球鹰上负载的仪器足以与NASA的热带气象卫星相媲美，探测辐射计(sounding radiometer)可以被当作光谱仪来使用。
The instruments on the Global Hawk rival those found in NASA's tropical weather satellites. The sounding radiometer can also work as a spectrometer.
电子香烟销售作为烟草替代品“创造愉快的吸烟环境”，而不是被当作药物来使用。
Electronic cigarette sales as tobacco alternatives to "create a pleasant smoking environment", rather than being used as a drug.
根据某些情报，它们也确实被当作简易的武器来使用，特别是信号弹点燃可燃的材料时，像是衣服，或是你身上的皮肉。
They also have been reported being used as improvised weapons, as they are able to ignite flammable material like clothing and human flesh.
可以看出，按值调用的目的是为了方便函数编写者，因为参数可以被当作已经初始化过的局部变量来使用，从而使程序更简洁。
It usually leads to more compact programs with fewer extraneous variables, because parameters can be treated as conveniently initialized local variables in the called routine.
而且其独特的可以向后翻的功能，还能被当作闹钟来使用。
And its unique function can be turned back, but also to use as an alarm clock.
此外，它也被广泛地当作一种药品来使用。
被众多老师所推荐的支架并不是一种孤立的教学策略，相反的，支架经常被当作一种难度不断增加的方法来使用。
It is recommended by many that scaffolding not be an isolated teaching strategy. Instead, scaffolding is a method that should constantly be used with increased difficulty.
BENNER说人工DNA分子被当作医学工具来使用——比如说，可以帮助医生监测病人血液中的HIV级别。
Benner said artificial DNA molecules are used as medical tools - for example to help doctors monitor the level of HIV in a patient's blood.
BENNER说人工DNA分子被当作医学工具来使用——比如说，可以帮助医生监测病人血液中的HIV级别。
Benner said artificial DNA molecules are used as medical tools - for example to help doctors monitor the level of HIV in a patient's blood.
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