相反，应用程序开发人员必须在把应用程序部署到移动设备中之前，在开发平台或登台区域上预先验证类。
Instead, the application developer must preverify the classes on a development platform or staging area before deploying the application into mobile devices.
一些图表分析师遵循诸如“头肩型态(headand shoulders)”和“双顶(double tops)”之类的模式；其他则关注移动平均值；第三类则相信市场走势的波动已预先决定。
Some chartists follow patterns such as "head and shoulders" and "double tops"; others focus on moving averages; a third group believes markets move in pre-determined waves.
但是向后移动要复杂些，因为迭代器内部执行的是深度优先算法，预先排好了Rope遍历的顺序，需要访问每个叶节点。
But moving backward is more complicated, because internally the iterator performs a depth-first, preorder traversal of the Rope, visiting each of its leaf nodes.
在主动数据库系统中，预先制定相应的规则，用事件作触发器去操纵数据库，能为移动数据库提供主动功能。
In active database systems, establish relevant rules in advance, using events as trigger to manipulate database, can provide active function for mobile database.
机器人只会按照预先设定在计算机内的指令移动和工作。
Robots are designed to just move and work by information put into their computers by humans.
若要将移动系统数据库数据或日志文件的操作作为预先安排的重定位或预定的维护操作的一部分，请执行下列步骤。
To move a system database data or log file as part of a planned relocation or scheduled maintenance operation, follow these steps.
预先注册的用户通过扫描ATM屏幕上的QR码，与移动设备连接。
The preregistered user integrates the mobile device by scanning a QR code on the ATM screen.
每回合开始都有机率特殊任务，只要击中移动中的红灯，就能预先占取其他轨道。
Once you hit the moving red led, you can occupy the track in advance.
每回合开始都有机率特殊任务，只要击中移动中的红灯，就能预先占取其他轨道。
Once you hit the moving red led, you can occupy the track in advance.
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