1.
Occurring from time to time.
偶发的时不时地发生
2.
parity generator-checker
奇偶发生－检验电路
3.
an adventitious disease
偶发病((后天性的疾病))
4.
The Procedure Model of Serendipitous Innovation and an Analysis on Inducing Factors;
偶发性创新过程模型及激发因素分析
5.
Effects on Sporadic E Layer of the Leonid Meteor Shower Bursting
狮子座流星雨爆发对偶发E层的影响
6.
The quality or condition of being fortuitous.
偶然性,偶然偶然发生的性质或状态
7.
Occasionally, Joe gets into a good-sized rage.
偶尔，乔大发雷霆。
8.
The IBM2 description on the low-lying states of even-even Ru isotopes;
Ru偶—偶同位素低激发态性质的IBM2描述
9.
Some liabilities are contingent.
有些债务是偶然发生。
10.
Vesuvius erupts once in a while.
维苏威火山偶尔爆发。
11.
Occurring unexpectedly, unintentionally, or by chance.
意外的，偶然发生的
12.
stumBle upon a rare Book
偶然发现一本少见的书
13.
Alight on sth :find sth by chance
偶然发现,碰见某事物
14.
Why don't you blow up occasionally?
你为什么不偶尔发次火？
15.
To reveal or make known, often accidentally.
泄露，揭发，经常是偶然地
16.
He blundered on(upon)a new method
他偶然发现一种新方法。
17.
she struck a goldmine.
她偶然发现一座金矿。
18.
Columbus discovered America by accident.
哥伦布偶然发现了美洲。