查询词典 only if

There are only a couple of air-conditioning units. The food is like all camp food: you go back for seconds only if you are incredibly hungry.

那里的食物也像所有的训练营食物一样：如果不是饿得发狂，绝对不会再去要第二份。

If deg f = n, then Rfc is an empty set. For all the functions of degree 2, Rf have at least 2n-1 vectors, when Rf is a linear subspace, the relationships between Rf and Lf are discussed . Boolean functions have no nonezero linear structure if and only if there are n linear independence vectors in f, the correlation of the vectors in ?

证明了，若degf=n，则R_f~c为空集，对于所有的二次布尔函数而言，均有R_f~c中的元素个数大于等于2~(n-1)，给出了R_f构成线性子空间时，R_f和L_f之间的关系，还给出布尔函数不含有非零线性结构的充分必要条件是ζ_f中含有n个线性无关的元素。

Moreover, it is obtained that, if X is a core compact and locally connected space, then the Isbell and Scott topologies agree on functions space for all continuous L-Domain L with a least element if and only if X is an RW-space.

而且还证明了，若X是核紧的局部连通空间，则对所有有最小元的连续L-DomainL，上的Isbell拓扑和Scott拓扑相同当且仅当X是RW-空间。

"Logicians distinguish two main types of implication, material and strict. Proposition p materially implies proposition q if and only if the material conditional p q (read "if p then q") is true"

逻辑学家将蕴涵分成实质的和严格的两种主要类型。p命题实质蕴涵q命题，若且唯若实质条件pq为真

A topological spaces X is minimal CH if and only if for each x∈X and each open CH-filterbase μ,if {x}=∩U∈μU=∩U∈μclU, then μ is a neighborhood base of x.

4拓扑空间 X是极小 CH空间，当且仅当对任意的 x∈X和任意开 CH滤基μ，若{ x}=∩U∈μU=∩U∈μcl U，则μ是 x的一个邻域基。

Zahavi (1975) suggested a mechanism for this, using the following recipe: signals are honest, if and only if they are costly to produce relative to the signaler's current condition and if the capacity to produce honest signals is heritable.

扎哈维为此提出了一个机制：运用下列理论：当且仅当杜撰信号发生装置相关的信息很麻烦，或产生诚实的信号是可遗传时，信号是真实的。

It is shown that if L is a subalgebra of a Lie color algebra Q, then Q is an algebra of quotients of L if and only if Q is ideally absorbed into L.

利用没有非零零化子的理想对Lie color代数的商代数进行刻画，证明了：若L为Lie color代数Q的子代数，则Q为L的商代数当且仅当Q理想吸收于L。

In this note the author showed that if s is nonnegative integer and A∈B n,n+s, then |R|=2 n if and only if A contains a submatrix which is permutation equivalent to the unit matrix of order n.

作者证明：如果s是一个非负整数且A ∈Bn ，n+s，那么｜R ｜=2 n 当且仅当A含有置换等价于n阶单位矩阵的一个子阵

If we add a new independent variable to a regression equation, increases if and only if the t statistic on the new variable is greater than one in absolute value.

如果我们向回归模型加入一个新的解释变量，当且仅当新变量的t统计量的绝对值大于1时，调整过的R2增加。

A two-way conditional is different from a single-branch conditional in the sense that if the condition is not satisfied, the program executes an alternative code block and only then proceeds to the code that follows the 'if-else' statement.

双条件分支与单条件分支的区别在于：当if语句中条件不满足时，双条件分支语句要执行另一个代码块。

What are your goals and strategies for growth?

你的成长目标和策略是什么？

And unto the angel of the church in Sardis write; These things saith he that hath the seven irits of God, and the seven star I know thy works, that thou hast a name that thou livest, and art dead.

3：1 你要写信给撒狄教会的使者，说，那有神的七灵和七星的，说，我知道你的行为，按名你是活的，其实是死的。