查询词典 null

Bitmap indexes can include rows that have NULL values, unlike most other types of indexes.

与其他大多数索引不同，位图索引可以包含键值为 NULL 的行。

Bitmap indexes can include rows that have NULL values, unlike most other types of

与其他大多数索引不同，位图索引、可以包含键值为NULL的行。

That's because int are value types and can never be null.

这是因为int是值类型而且永远也不能为null。

Lenormand R%Touboul E%Zarcone C Numerical models and experiments on immiscible displacements in porous media 10.1017/S0022112088000953 Fluid Mechanics , 1988,null

曾溅辉%金之钧油气二次运移和聚集物理模拟北京：石油工业出版社， 2000，null

Christian J J The adreno-pituitary system and population cycles in mammals Journal of Mammalogy , 1950,null

宛新荣%钟文勤%王梦军布氏田鼠的生态学及控制对策北京：海洋出版社， 1998，null

Any of the deprecated functions has the potential to walk off the end of a memory page looking in vain for a null terminator.

这些反对的函数中的任何一个都具有潜在的走到内存页的末端徒然的查找一个 null终止。

Menon EB%Tan ES Urinary tract infection in acute spinal cord injury Singapore Medical Journal , 1992,null

中野博 导尿引起的感染及其预防管理国外医学-医院管理分册， 1989，null

NULL if the class menu is to be used.

如果这个类的菜单被使用，则用 NULL 。

As an example, lets retrieve the one document with name=='mongo'. There are many ways to do it, including just calling next on the cursor (after checking for null, of course), or treating the cursor as an array and accessing the 0th element.

例如，我们可以通过很多种方式检索一个名称为'mongo'的document，包括在游标中调用next函数(当然，要验证完是否为null之后)，或者把游标看做一个数组然后访问数组的[0]下标元素。

Monteith J L Fifty years of potential evaporation Dublin , 1994,null

刘昌明%洪嘉琏%金淮农田蒸散量的计算北京：气象出版社， 1991，null

I use an example quoted by Hu Jiaqi:"It is reported that America separates the DNA of a kind of virus by making use of genetic technology and combines it with another kind of DNA. Finally, they get a kind of virulent biological agent called a "pyrotoxin". Someone discloses in private that 20 grams of such a kind of biological agent could result in the global death of 6 billion people due to infection."

我在这里例举胡家奇所引用过的例子："据报道，美国利用转基因技术，将一种病毒的DNA分离出来，与另外一种DNA进行结合，拼结成一种剧毒的"热毒素"生物战剂，且私下有人透露，这种生物战剂只需20克，就可以导致全球60亿人全部感染死亡。"

Waiting, for the queers and the coons and the Reds and the Jews.

等待着疯子和黑人还有红色共产主义者还有犹太人