技师想要一台备用发动机以防万一。
The technician wanted to keep an auxiliary engine handy just in case.
两台40马力的压缩机运行，另外还有一台备用。
Two 40 HP screw compressors in operation, plus one new standby compressor provided.
例如，有些客户可能会在一台备用机器上建立一个日志传送环境。
For example, some customers may choose to set up a log shipping environment on a standby machine.
备用发动机：我们能为每架飞机在中国至少提供一台备用发动机。
Spare engine: We will provide at least one spare engine ready in China for each aircraft.
下面的机器节文件示例将机器ha5定义为一台备用的中央管理器。
The following machine stanza example defines the machine ha5 as an alternate central manager.
在最简单的情况下，每台服务器配备一台备用服务器，用于故障恢复。
In the simplest case, a server is paired with a backup that serves as the failover target.
给出了三台注醇泵其中二台工作一台备用的冗余系统的可靠性概率模型。
The reliability probability model of 3 alcohol injection pumps two of which work, the rest one is a SPAR...
对需24小时连续不停运转的泵，应备用三台泵，运转，一台备用，一台维修。
On the need for a 24-hour non-stop operation of the pump, should reserve three pumps, operation, a backup, a maintenance.
对需24小时连续不停运转的泵，应备用三台泵，一台运转，一台备用，一台维修。
On the need for a 24-hour non-stop operation of the pump, should reserve three pump, a functioning, a backup, a maintenance.
当一台服务器上发生故障时，该备用适配器就从另一服务器上接管所有连接。
When a failure happens on one server, then this standby adapter takes over all connections from the other server.
如果一台单独的专用机器提供某种关键服务，比如dns或集中的身份验证，它就是致命的弱点，必须为它提供充足的备用硬件。
A lone, dedicated machine providing some crucial service-say, DNS or centralized authentication-is an Achilles heel and warrants a bullpen for backup.
我们有一台万一断电时使用的备用发电机。
我们有一台以防断电时使用的备用发电机。
咱们有一台万一断电时应用的备用发电机。
备用连接重试：如果网络中断持续时间超过2分钟，那么要通过备用网络连接重新连接到另一台物理服务器或虚拟机。
Alternate connection retry: If network interruption lasts more than two minutes, reconnect to another physical server or virtual machine via alternate network connections.
我买了一台电池寿命很长的，还买了一个备用电池，这是一位读者的建议。
I got one with a long battery life, and picked up an extra external battery to boot, on the recommendation of one of my readers.
每个机泵配备一台配雾器，每个配雾器有三个备用出口以供分配油雾。
Each pump is equipped with one distributor and each distributor has three spare export for distribution oil mist.
我们更引进一台设备用以分隔混在咖啡豆内的外来物质。
We have also introduced a new processing machine to separate tiny foreign matters from the roasted coffees.
当工作的这一台发生故障自动停止工作时，备用的这一台自动投入工作。
When one set goes wrong and stop, the other would be put into use automatically.
我们有一台三百千瓦的事故备用发电机。
We have an emergency-standby electric generator with a capacity of 300 kilowatts.
需选择KM3Q3.2型煤气发生炉及净化设备四台套，其中一台套为备用设备；
Required to choose KM3Q3. Type 2 gas occurrence boiler and purification equipment four sets, one sets for standby equipment;
需选择KM3Q3.2型煤气发生炉及净化设备四台套，其中一台套为备用设备；
Required to choose KM3Q3. Type 2 gas occurrence boiler and purification equipment four sets, one sets for standby equipment;
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