他正在填写奖学金的申请表格。

He is filling out ___applications for scholarships.

数学中的微积分理论在工程领域有许多实际应用。

The calculus theory in mathematics has many practical ___applications in engineering fields.

我手机上有几个常用的应用程序。

I have several frequently used ___applications on my phone.

新软件的应用需要更多测试才能全面投入使用。

The ___application of the new software requires more testing before full implementation.