1·Probe is made of unique four tuples, as shown below
探测是一个惟一的四元组，如下所示
2·Listing 3. Using make_tuple to return tuples from functions.
清单3 .使用make_tuple来从函数返回元组。
3·Tuples are delimited by curly brackets (see Listing 13).
元组要放在花括号中（参见 清单 13）。
4·There are also quite a few functions you can run on tuples.
您还可以对 tuple 运行一些函数（请参见清单 9）。
5·By default, we will only cache tuples potentially smaller than 150,000.
默认情况下，我们将仅可能缓存少于150,000的元组。
6·Comparing tuples of unequal lengths results in a compile-time error.
比较不同长度的元组会产生编译时错误。
7·Tuples can contain Numbers, strings, variables, and even other tuples.
tuple可以包含数字、字符串、变量，甚至其他tuples。
8·Tuples are a composite data type and are used to store collections of items.
元组是复合的数据类型，用于存储数据项的集合。
9·Tuples are 0-indexed, as you'd expect; you can access the last item using the -1 index.
Tuples 从 0 开始建立索引，这很正常；您可以使用 -1 索引访问最后一个项目。
10·It's important to keep the following facts in mind when you're working with tuples.
在使用元组时，务必牢记以下事实。
1·This does not mean that all tuples up to 150,000,000 will be stored in the cache as other heuristics are also considered by the engine.
这并不意味着所有达到150,000,000的元组都将存储在缓存，因为其他探试程序也是该引擎所考虑的。
2·A language so similar to SQL would seem to want to return column sets (tuples), like SQL does, but an object database doesn't work that way — it wants to return objects, not arbitrary sets.
类似于SQL的语言要求返回列集(元组)，与SQL相同，但是对象数据库不会以这种方式工作——它希望返回对象，而不是随机集。
3·The child list is more subtle: Strings can be interleaved with tuples in the list, indicating a mixed content element.
子列表更为精巧：在列表中字符串可以与元组交错，表示混合的内容元素。
4·The ideal value for this setting will vary on a per environment basis, however a good starting point would be 10000 tuples.
该设置的理想值会随环境而变化，不过一个好的起点是10000个元组。
5·Usage: This parameter controls the decision on whether or not to apply a NON EMPTY clause on member requests when the number of tuples exceeds the set threshold.
用法：当元组数超过设定的阈值时，该参数控制是否对成员请求应用NON empty子句的决策。