1.
The Global Existence and Nonexistence of Solutions to Semilinear Parabolic Equations in R_+~N
R_+~N上半线性抛物方程解的存在性和不存在性
2.
Non-existence Results and Existence Results for the Elliptic Equations;
椭圆方程组解的不存在性与存在性研究
3.
The Existence and the Non-existence of Global Solutions of a Free Boundary Problem;
一个自由边界问题整体解的存在性和不存在性
4.
Existence and Nonexistence of Positive Solutions for Nonhomogeneous Semilinear Elliptic Equations;
非齐次半线性椭圆型方程正解的存在性和不存在性
5.
Nonexistence of Rational First Integrals for Polynomial Systems;
多项式系统有理首次积分的不存在性
6.
The Non-existence of the Closed Orbit About a Kind of Liénard Equations;
一类Liénard方程闭轨的不存在性
7.
Nonexistence Results for a Class of Sub-P-Laplacians
一类次P-Laplace方程非负解的不存在性
8.
Subjectivity is the core of personality, and the subjectivity on the individual person means the difference exists.
个性的存在体现着差异性的存在，但差异性的存在并不一定能体现人的个性的存在。
9.
not having existence or being or actuality.
不存在或者不实际存在。
10.
The Existence of Solutions to Nonlinear Mixed Variational-like Inequalities;
非线性混合似变分不等式解的存在性
11.
This property value does not exist in this shape's scope.
此属性值在此形状的作用域中不存在。
12.
The phenomenon of female sterility is common in plant.
雌性不育现象在植物界内普遍存在着。
13.
Is there a God or isn't there, and if there is a God, what is its nature?
上帝到底存不存在,假使存在,那么他的本性是什么?
14.
It is found not only among individuals but also to a varying extent in some organs.
惰性，不只是在一些人身上存在，甚至有些机关也不同程度地存在。
15.
Not indicating the presence of microorganisms, disease, or a specific condition.
不存在的，阴性的不表示微生物组织、疾病或一特定条件的存在
16.
Is the Female Sterility Present in indica-japonica Hybrid Rice?
水稻亚种间杂种是否存在雌性不育?
17.
the quality possessed by something that is unreal.
不存在的事物所具有的属性。
18.
uncertainty about the truth or factuality of existence of something.
不能确定某事物存在的真实性。