Each of the four fundamental forces (gravity, electromagnetism, and the strong and weak nuclear forces) has a kind of theoretical knob.

四种基本力（万有引力、电磁力、强核力和弱核力）中的每一种都有一个理论上的旋钮。

youdao

Each of the four fundamental forces (gravity, electromagnetism, and the strong and weak nuclear forces) has a kind of theoretical knob that can be turned up or down to change its strength.

四种基本力(重力，电磁力，强作用力和弱作用力)都有一个理论把手，调节这东西可以改变力的强度。

youdao

One of the most exciting ideas in modern physics is that gravity is not a traditional force, like electromagnetic or nuclear forces.

现代物理学最令人兴奋的观点之一是重力不是像电磁力和核力一样是传统力。

youdao

not the usual enhancement, but rather qualitative enhancement - above all through the strategic nuclear forces.

VOA: standard.2009.03.20

"It slashed U.S.and Russian strategic nuclear forces from 1990 levels of about 10,000 deployed strategic warheads each down to approximately 6,000 by the year 2001,"

VOA: standard.2009.12.07

So both sides have gone well below the original START-One ceilings for their nuclear forces."

VOA: standard.2009.12.07

According to the former official, the secrets held within the WHMO include data on the so-called "nuclear football, " the nuclear command and control suitcase used by the president to be in constant communication with strategic nuclear forces commanders for launching nuclear missiles or bombers.

CENTERFORSECURITYPOLICY: Center For Security Policy

Arms Control: Some of these agreements affecting strategic and conventional forces, nuclear testing and chemical weapons could also result in U.S. forces substantially less effective as deterrents to aggression as a result of changes in their size, composition, technological sophistication and disposition.

CENTERFORSECURITYPOLICY: Center for Security Policy | A Scorecard On The Defense Budget: Preserving Key Priorities And Programs In An Era Of Cuts

Agreements are imminent on strategic arms, chemical weapons, conventional forces and nuclear testing.

CENTERFORSECURITYPOLICY: Can The United States Afford Not To Be Properly Defended?