The optional argument represents a fallback value, which is used if the named attribute is missing, or its value cannot be parsed into the given type or is invalid/out-of-range for the property.
可选参数表示应变值，如果命名属性用于失踪，或它的价值不能被解析到特定类型或属性是无效或超出范围。
Just like with JDBC, you can access a property value by its name or index.
就像JDBC一样，您可以通过名称或索引来访问它的属性值。
The group may need to go through a special session to examine its purpose or resolve value conflicts.
团队可能需要进行一个特殊的会议来仔细检查它的目标或者解决价值冲突。
With study and practice, almost anyone can do it with some level of proficiency, but most people don't learn how to think critically or analytically-nor are they even aware of its value.
通过学习和实践，几乎任何人都能以不同的熟练程度来掌握它，但是大多数人都不会去学习如何进行批判性或分析性思维，或者说，他们根本意识不到其价值。
Its value can be a number or letter and should be unique among all the elements.
它的值可以是数字或字母，且在所有元素中应保持惟一。
A local variable is one that is only available for use (that is, you can assign to it, or fetch its value) within the scope in which it is declared, and within nested scopes as well.
本地变量是仅可以在声明它的范围中和嵌套范围中使用的变量(也就是说，您可以向其赋值，也可以从中取值)。
Use cases are developed from a customer scenario or issue, with role, goal and business value as its constituents.
用例根据客户情况或问题而开发，其构成包含角色、目标和商业价值。
As an investment that does not produce income, its attraction lies solely in the hope that its value will rise or at least be maintained.
作为一种投资品，黄金本身不能创造价值，它的吸引力仅仅来自于其本身价值的上升或者至少保持当前的价值。
This may all seem well and good, until you see the big inherent risks to basing your IT shop on TCO or its variants: capturing intangible value and the “who cares” factor.
这一切看起来似乎都不赖，直到你发现其中最大的内在风险，让你的IT商店依赖于TCO及其派生上：去捕获无形价值以及“谁在乎”这个因素。
To send outbound events based on the value of the KPI relative to its target or ranges, create triggers and outbound events in the KPI context.
若要基于KPI相对于其目标或范围的值发送出站事件，请在kpi上下文中创建触发器和出站事件。
This means that a variable may reject attempts to set its value to something malicious or simply nonsensical by referring to a regular expression (or even a piece of code).
这意味着通过引用正则表达式(或者甚至是一段代码)，变量会拒绝将其值设置为某些恶意的值或完全无意义值的尝试。
A service has a provider, can have one or more consumers, and produces effects that are of value to its consumers.
一个服务有一个提供者，一个或多个消费者，并产生对消费者有价值的效果。
Q: Do you blog out of your hobbies, or out of its underlying business value?
问：你写博客，是纯属个人爱好，还是看上了博客未来的商业价值？
At last my book, or at least its chapter on medical matters, proved to have some value.
最后，或者说至少在我的土耳其导游书中，关于医药方面的章节被证明还是有一些价值的。
Or does it mean “don’t change its current value”.
或表示“不要改变其当前值”。
You can specify a color using the color's name, its RGB triplet, or the hex value for the color.
可以使用颜色的名称、颜色的rgb值或者颜色的十六进制值来指定颜色。
Peg Fixed value of a currency based on its relation to another currency or the value of an underlying commodity, such as gold.
钉住一种货币的固定价值基于另一种货币或相关商品(比如黄金)。
It may have been unfamiliarity with the currency itself, rather than with its face value, which caused price gouging (or, at least, allegations of price gouging) when the euro was introduced.
当在实验中引入欧元后，研究发现，很可能是对货币本身不熟悉而不是对于面值不熟悉导致了“价值欺骗”(或者说，至少参加者宣称是这样的)。
It is still holding the renminbi at about 25 or 30 percent below its probable market value.
中方依然保持人民币低于其市场价值的25% ~ 30%。
Numeric columns that could be negative (for example, col_E) are tested using a XSL: when statement to see if its text value is less than or greater than 0.
可能包含负值的数字列(例如col_E)使用一个xsl：when语句进行测试，看它的文本值小于0还是大于0。
Its value can be document for a document Oriented operation or RPC for an RPC operation.
它的值可以是document，表示面向文档的操作，或者是rpc，表示rpc操作。
The built-in get function is then used to retrieve each option, or its default value, if the option was not specified.
如果选项没有指定，内置的get函数可以用来检索各个选项，或者其默认值。
To enable or disable a cache, locate its cache entry and set the enabled value to false.
为了激活一个高速缓存或者使之失效，就要找到其自身的高速缓存入口并设置激活的数值为false。
But don't get us wrong, FriendFeed's financial success (or lack thereof) is only one way to measure its real value.
FriendFeed能否取得财务成功只是衡量其真正价值的标准之一。
The term "user experience" refers to a concept that places the end-user at the focal point of design and development efforts, as opposed to the system, its applications or its aesthetic value alone.
而不是系统、应用程序或者单纯的审美价值。
However, if max-age (or corollary s-maxmag for public caches) is set, its value overrules Expires.
但是，如果设置了max -age(或者对于公共缓存来说必然使用的s -maxmag)，则它的值将撤销Expires。
Outlook Weekly, part of the state news agency, quoted a military academic warning that to misuse the term "core interests" might undermine its deterrent value or even lead to armed conflict.
这家国家通讯社的分刊，瞭望周刊援引某位军事学者的警告称，滥用“核心利益”一词可能会削弱它的威慑价值，甚至导致军事冲突。
It can also save time, if it turns out (as it often does) that the only thing done with the node-set is to test whether it is empty, or to get the value of its first element.
它还可以节省时间，如果对于节点集的唯一操作就是测试它是否是空的(通常是这种情况)，或者对它的第一个元素进行赋值。
It can also save time, if it turns out (as it often does) that the only thing done with the node-set is to test whether it is empty, or to get the value of its first element.
它还可以节省时间，如果对于节点集的唯一操作就是测试它是否是空的(通常是这种情况)，或者对它的第一个元素进行赋值。
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