这些设备的逻辑下，用户可以控制多台一次参数。
The logic beneath these devices allows the user to control more than one parameter at once.
只需在sql语句中使用一次参数标记，然后就可以多次重用。
Use parameter markers to prepare an SQL statement once, and then reuse it many times.
当然，应该基于每个项目存储HSQLDB连接参数，而不是在整个工作台中只保存一次。
Of course, HSQLDB connection parameters should be stored on a per-project basis, instead of only once for the whole workbench.
如果打算试验网络从而发现对于这些不同的选项它是如何做的，您可以覆盖命令行中的所有参数，但每一次运行还是会耗费一些时间。
You can override all the parameters on the command line, if you want to experiment with the net to discover how it does with various options — each run might take a while, though.
您将会创建一个同时使用两种参数的搜索(一次AND搜索)。
You will learn how to create a search that USES two parameters simultaneously (an AND search).
使用绑定参数的原因是让数据库一次解析sql，对后续的重复请求复用生成好的执行计划，这样做节省了CPU时间和内存。
The reason for using binding parameters is to ask the database to parse your SQL once and reuse the generated execution plan for subsequent repeat requests, which saves both CPU time and memory.
查询只需解析(或准备)一次，但是可以用相同或不同的参数执行多次。
The query only needs to be parsed (or prepared) once, but can be executed multiple times with the same or different parameters.
就泛型方法来说，如果一个类型参数在方法签名中只出现一次，它很有可能是一个通配符而不是一个命名的类型参数。
In the case of generic methods, if a type parameter appears only once in the method signature, then it probably should be a wildcard rather than a named type parameter.
当程序执行时，将在10次连接的每一次中用随机参数反复执行相同的事务。
When the program executes, the same transaction with random parameters is executed over and over in each of the 10 connections.
另外，我们通过捕获元数据中的参数集中的相互依赖关系，而且仅仅要求输入一次这些参数，进一步减少了参数的数量。
We also further reduced the number of parameters by capturing the interdependency among the set of parameters in the metadata, and only requiring these values to be input one time.
如果需要重试写操作，它必须使用和前一次完全相同的参数。
If the write operation is to be retried, it must be with the exact same parameters as before.
REST通常从服务入口url开始形成一次请求，然后以查询字符串的形式追加搜索参数。
Typically, REST forms a request by beginning with a service entry URL and then appending search parameters in the form of a query string.
通过控制此参数，您可以告诉模拟引擎一次只能激活特定数量的任务。
By controlling this parameter, you can tell the simulation engine that only a specific number of tasks can be active at one time.
不要求顶级的性能，因为参数只需处理一次。
Doesn't require top performance, because the arguments are only processed once.
如果使用BoxImpl .make工厂实例化一个Box，您只需要指定一次类型参数。
If you instantiate a Box using the BoxImpl.make factory, you need only specify the type parameter once.
现在已经创建了Scheme变量，接下来就可以调用scheme函数square2(这一次没有参数)，并用相同的方式捕捉和取消引用返回值。
Now that the Scheme variable has been created, you can simply call the Scheme function square2 (this time without an argument) and follow the same process to grab and dereference the return value.
预置语句与statement类的主要区别在于，前者可以只编译和优化一次，然后通过设置不同的参数值多次使用。
The main difference is that, unlike the statement class, prepared statement is complied and optimized once and can be used multiple times by setting different parameter values.
换成带有参数标记的语句，一次准备，重复执行，这样做是十分可取的。
With one that has parameter markers and is prepared once and repeatedly executed.
只准备insert语句一次，在语句中使用参数标记，然后多次执行该语句。
Prepare the Insert statement once, with parameter markers, and execute it multiple times.
尽管一般情况下还是不允许使用线程，这些后台实例可维持在内存缓存中，并通过max -concurrent - requests参数的设置，一次可以为多个请求服务。
Although threading is still disallowed in general, these backend instances can maintain in-memory caches and serve multiple requests at once through the max-concurrent-requests parameter setting.
不过，当xargs构建命令时，它将一次传递尽可能多的参数。
However, when xargs builds the command, it will pass as many parameters at once as it possibly can.
清单13中的- i10参数指示pvmove每10秒报告一次状态。
The -i 10 parameter in Listing 13 tells pvmove to report back status once every 10 seconds.
在下一次要使用这个远程连接时，只需作为ncftp的参数提供书签，见清单6。
The next time I want to use this remote connection I only need to supply the bookmark as part of the NCFTP parameter, as shown in Listing 6.
这意味着您只需打包一次BAR文件，在开发机器中使用一组参数值来对它做测试，然后将它部署到使用另一组参数值的生产环境中，而不必重新编译。
It means you can package a BAR file once, test it on a development machine using one set of parameter values, and then deploy it to the production environment using another, without recompiling.
当您第一次启动此对话框时，将为您设置服务器类型的默认参数，但是您可以随时更改该参数。
When you launch this dialog for the first time, the default parameter for the server type is set for you, though you can change that at any time.
此步骤与最终渲染步骤关联，因此我们将使用指定参数一次仅创建一个背景图像，然后逐帧自动进行此生成过程。
This step is linked with the final render step, so we will simply create a background image one at a time with specified parameters, then automate this generation process frame by frame.
区别在于，使用递归函数极少被迫修改任何一个变量——只需要将新值作为参数传递给下一次函数调用。
The difference is that with recursive functions, you rarely have to modify any variable — you just pass the new values as parameters to the next function call.
当您再次选择运行相同过程或函数时，系统将使用从上一次运行该特定过程或函数中得到的值预填充参数值。
When you choose to run the same procedure or function again, the parameter values are pre-filled with values from the previous run of that particular procedure or function.
这些函数以环境句柄、连接句柄、语句句柄或描述符句柄作为输入参数，返回与上一次使用该句柄作出的函数调用相关的诊断信息。
These functions take environment, connection, statement, or descriptor handles as input and return the diagnostic information related to the last function call made using that handle.
从那里开始，每一次后续的递归调用都使用那些参数作为新的值。
From there, each successive recursive call USES the parameters as new values.
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