To explain this, they hypothesize that galaxies must contain a great deal of missing matter which cannot be detected.
为了解释这一点，他们假定银河系一定包含了大量无法探测到的不明物质。
The UFOs, it is believed, must contain scientists from other planets who are studying life on earth.
人们相信，这些不明飞行物中一定有来自其他星球的科学家，他们正在研究地球上的生命。
It is after all a simple ball and socket joint; it has certain loads imposed on it; it needs reliability over a defined life; it must contain materials suitable for the working environment.
它毕竟是一个简单的球窝关节；它有一定的载荷；它在有限的生命中需要可靠性；它必须包含适合工作环境的材料。
All step pages must contain only one step-completion widget.
所有的步骤页面都必须只包含一个“步骤完成”小部件。
Usage type: Select Required so that requests must contain the token.
Usagetype：选择Required，使该请求必须包含该令牌。
XML documents must contain matching start and end tags for each element.
XML文档必须包含每个元素匹配的开始标记和结束标记。
Logs must contain timestamps, with timezone, to the millisecond or nanosecond.
日志必须包含时间戳，其中含有时区，精确到毫秒或纳秒。
The variable in parentheses must contain a valid SQL clause, which is parsed at runtime.
圆括号中的变量必须包含一个有效的SQL子句，在运行时会解析它。
The correlation context business object must contain a string field named requestMessageID.
管理上下文业务对象必须包含一个名为requestMessageID 的字符串字段。
An XML dictionary in UTF-8 format; the file-naming convention must contain the language id.
UTF - 8格式的XML字典；文件命名约定必须包含语言id。
The file is a standard PHP.ini file and must contain entries for name, description, core, and PHP.
这个文件是一个标准的php . ini文件，必须包含以下条目：name、description、core和php。
This attribute must contain the network accessible location for the WSDL service interface document.
这个属性必须包含WSDL服务接口文档的网络可访问位置。
Each call generated on the client must contain an action argument so that the server knows what to do.
客户机上生成的各调用必须包含一个action参数，以使服务器了解执行怎样的活动。
The DWLControl object must contain one user name, and optionally zero or more group names per transaction.
对于每个事务，DWLControl对象必须包含一个用户名，另外还可以包含0个或多个组名。
This file must contain the path to each activation script, and ordering rules for when it executes at boot.
这个文件必须包含每个激活脚本的路径，以及在启动时它所执行的顺序规则。
Is a hidden column and must contain the event duration in order for the calendar view to display correctly.
是一个隐藏列，它必须包含事件持续时间，以使日程表视图能够正确显示事件。
Each HTTP request to the API must contain a mandatory "action" parameter, which specifies the action required.
该API的每一个HTTP请求都必须包含一个“action”参数，它指定请求的动作。
The message must contain an identifier of some kind so that the target will discard any duplicates it receives.
消息必须包含某种标识符，以便目标方能够将收到的副本丢弃。
The actions and messages must contain a parameter that contains the identifier for the content piece to display.
这些操作和消息必须包含一个参数，这一参数包含要显示的内容块的标识符。
The string must contain exactly the amount of data required by the format: len(string) must equal calcsize(fmt).
字符串必须含有格式所需的确切数据量：len(string) 必须等于calcsize(fmt)。
Note: There is a limitation that the name of the project in the RequisiteWeb catalog must contain no Spaces.
注意：有一个限制条件，那就是RequisiteWeb目录之中项目的名字中不能有任何空格。
Include additional annotations on type parameters telling us which constructors those instantiations must contain.
包含额外的类型参数注释，告知我们这些实例化必须包含哪些构造函数。
Each request from the client to the server must contain all of the information necessary to understand the request.
从客户端到服务器的每个请求都必须包含理解请求所必需的信息。
This does not mean that the message must be in one of the XML domains, but the bitstream must contain well-formed XML.
这并不意味着消息必须属于某个xml域，但是位流必须包含格式正确的XML。
I use minimally with emphasis because all GBeans must contain the declarations and implementations as shown in Listing 2.
我使用最低限度来强调，是因为所有GBeans都必须包含如清单2所示的声明和实现。
In the search field, I can specify a word that a document must contain, and another word the same document cannot contain.
在搜索字段内，我可以指定文档中必须包含的一个单词以及不能包含的另一个单词。
If the converter produced an object of type trade, then the handler class must contain a method named handle (trade trade).
如果转换器产生了一个交易类型的对象，随后处理类必须包含一个名为handle (trade trade)的方法。
Cultures of yogurt, according to the National yogurt Association, must contain at least 100 million live bacteria per gram.
根据美国国家酸奶协会的说法，每一克酸奶中的培养菌至少含有一亿个真菌。
This means that the messages must contain the structural information to allow the service to join data from separate tables.
这意味着消息必须包含结构信息，以允许服务连接来自不同表的数据。
The path and the library path variables must contain the fully qualified path to the folder where OutsideIn binaries are placed.
路径和库路径变量必须包含放置outsidein二进制文件的文件夹的完全限定路径。
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