New authentication system: The updated app will tighten up the authentication system so that passwords are no longer sent in clear text.

新的验证系统：新版应用程序将收紧验证系统，密码不再以明文显示。

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We will tighten oversight of electricity rates charged by power plants with desulfurizing devices and improve the system for demand-side management of electricity.

继续加强脱硫电价监管，完善需求侧电价管理制度。

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You could further tighten the system by modifying the validation method voter_is_okay within the DraftBallot class to consult a list of acceptable E-mail addresses.

您可以通过修改draftballot类中的验证方法voter_is_okay来加强这种限制，使其在进行验证时参考一个可接受的电子邮件地址。

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Government attempts to tighten the student-visa system attracted criticism from two reports by MPs within the past week.

BBC: UK universities take four of six top global rankings

We've got a number of countries on our side, and I think we will be able to tighten up and make those regulations much tougher for people coming in just to take advantage of our benefits system.

BBC: UK Politics