When power generation and power consumption system with same voltage class is built within the bound of ground grid with zero ground potential, operators safety in the ground grid can be ensured.

在零地电位接地网的范围内建设同级电压的发电-用电系统，可保证在该接地网内工作人员的人身安全。

youdao

It has also sung at the White House, the Kennedy Center and at Ground Zero in New York City.

VOA: special.2009.11.13

Well, the energy at infinity is zero -K and the energy in the ground state is minus K.

无限远处的能量值为,而基态能量值为。

麻省理工公开课 - 固态化学导论课程节选

I assume that you know nothing, starting from ground zero here and build it up.

我假设你们什么都不知道,零起点,从头开始

耶鲁公开课 - 聆听音乐课程节选

His campaign and Obama's timed their motorcades to arrive at Ground Zero in sync.

NPR: Obama, McCain Speak At Community Service Forum

The San Francisco Bay Area is ground zero for companies driving these innovations.

FORBES: Facebook Is More Proof Innovation Is Thriving In Silicon Valley

Dervatives are their crown jewel of profit and also ground zero of the meltdown.

FORBES: Don't Let Banks Weasel Out Of Derivatives Reform