Tests if this hashtable maps no keys to values.
测试哈希表是否有key到值的映射。
This is a consequence of there being no primary and foreign keys in CouchDB. There are no keys to base joins on.
因此 CouchDB中没有主键和外键，没有基于连接的键。
My car that was under the porch sits outside the gate but I have no keys to take the injured to hospital. And no road I suppose.
我的车就停在门外的走廊里，但我没有钥匙，无法将受伤者送往医院，可能也没有路，我想。
The car contained the paraphernalia of a growing number of suicides in Japan, although investigators were puzzled to find there were no keys in the ignition.
日本的自杀事件日趋增多，这辆车装着用于自杀的随身用具，但调查人员发现点火装置上并没有钥匙，这令他们迷惑不解。
But the problem with cars, as often with people, is that what truly matters lies beneath the surface, and since there were no keys available for any of the autos, their innards had to remain untested.
可是汽车的问题，常常同人一样，真正重要的部分不在表面。既然所有的车都没钥匙，内部情况便无从考验。
If the dimensions use operationally derived keys with time stamps for history, there is no additional work when a fact is created.
如果维度将带有时间戳的操作派生的键用于历史数据，那么在创建事实时，就没有附加工作。
She had not had the key, no one had had the key, there had not been any one key to the church, but several keys to several different doors, and they had all been left outside in the locks.
她没有那把钥匙，没有人有那把钥匙，那座教堂没有一把钥匙，但几个门配有几把钥匙，这些钥匙并没有留在外面的锁上。
So to make things simpler for this article, no foreign keys are used.
因此为了简化起见，本文没有使用外键。
The same keys must be used otherwise there will be no record matches between the two underlying tables when they are filtered and no data will be returned.
必需使用同样的健，否则在过滤时，两个基础表之间没有匹配的记录，而且不会返回数据。
No modification is required to the drawbooks function, because the objects all have the same keys and values as the original hash tables.
不需要对drawbooks函数做任何修改，因为对象都有与原始的散列表相同的键和值。
No application should ever use any of the keys provided by Windows Azure as keys to encrypt data.
任何应用程序都不要使用由WindowsAzure所提供的任何密钥来加密数据。
Bad news for Banks: a survey conducted by marketing research firm brand Keys found that consumers make no differentiation - none - between bank brands.
对于银行的坏消息：根据一个美国市场调研公司BrandKeys开展的调查显示，客户完全、彻底不能区分银行的品牌。
The link line is no longer there between the keys since the relationship is now a complex expression that goes beyond linking items from one query subject to another.
键之间的连接行已经没有了，因为现在关系已经是一个复杂的表达式，而不是在查询主题之间连接项目那么简单。
For the sake of simplicity, it contains no explicit foreign keys.
为简单起见，该图不含显式的外键。
No, but the robber took away her purse with two thousand five hundred nt, some keys and a handbook inside.
没有，但强盗夺去她的包，里面有两千五百元台币，一些钥匙和一本银行存折。
There are seven keys to finding God's version of success in your work, no matter what you do.
不论干什么，上帝认为事业成功需要七个因素。
The defaults are very reasonable, but there are certain options like making sure there are no stray keys in the plugin.properties file, which is very useful.
默认值都十分合理，但是某些选项需要确保plugin . properties文件中没有散乱的键，这非常有用。
Wiggs suggests keeping crypto keys or other sensitive data in byte arrays which should be overwritten with zero as soon as they are no longer used.
Wiggs建议把加密密钥或其他敏感数据保存在字节数组中，那样能够在不需要的时候就会被重写为零。
Ontrary to any rumors, the security architecture is the same around the world and RIM truly has no ability to provide its customers' encryption keys.
与传闻恰好相反，RIM的安全结构在世界各地同样安全，而且RIM不会向任何人泄露顾客的加密密匙。
Windows 7 RC1 will be available at least through June 30, 2009, with no limits on the number of downloads or product keys available.
Windows7RC 1至少在2009年6月30日前是可下载的，同时不限制下载的次数或密钥有效性。
What were all of those keys for? No one knows that many doors.
所有那些钥匙有什么用?也没那么多门。
Ginger: he isn't anywhere. Don't you get it? There's no morning egg count, no farmers, no dogs and coops and keys, and no fences.
金杰：他哪儿也没去。你们还不明白吗？每天早上再也不用数蛋，没有农夫，没有狗，没有鸡笼和钥匙，也没有栅栏。
If you get a message: No or Bad LTPA, then regenerate the keys.
如果您收到消息：NoorBadLTPA，那么重新生成keys。
The uuid-based keys are an essentially random hexadecimal string in a defined format that serves no purpose beyond that of ensuring uniqueness.
基于uuid的键本质上就是一个随机的、有确定格式的十六进制字符串，这个格式仅仅是为了确保键的唯一性。
It stands to reason that no seller is going to tell you where they get their stock; that would be like giving away the keys to their business.
按理说，没有卖家会告诉你他们得到他们的股票，这将是想赠送的钥匙，他们的业务。
On the other hand, that's no worse than the current situation; you can't pass an int as a key to Hashtable because all keys must be of type Object.
另一方面，当前的这种情况是最糟的；您不能将int作为键传递给Hashtable，因为所有的键都必须是Object类型。
While there's no formula for success, there are three keys to a killer web service: search, aggregation, and conversation.
没有成功的模式，但成功的网络服务具有三大杀手锏：搜索、内容聚合和会话交流。
The result of such process is an empty file of the keylogger, which by no means can contain data about pressed keys.
结果，这个过程是一个空文件的键盘记录软件，它决不是可以包含数据压键。
These are the keys to fulfilling the pledge of the 2030 Agenda to leave no one behind.
这些都是履行《2030年议程》中不让任何人掉队承诺的关键要素。
These are the keys to fulfilling the pledge of the 2030 Agenda to leave no one behind.
这些都是履行《2030年议程》中不让任何人掉队承诺的关键要素。
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