NOT REQUIRED

However, a ban on such devices is not required. Instead more attention needs to be paid to correct posture.

不过，要解决这一问题不是要禁用这一类设备，而是要多多注意平时的坐姿。

Completion of these problems is optional and not required.

此题为自由发挥不列入计分。

So I'm not required to take composition.

所以我不需要修作文课。

Rummage sale is an informal, irregularly scheduled event for the sale of used goods by private individuals, in which sellers are not required to obtain business licenses3 or collect sales tax ( though, in some jurisdictions4, a permit may be required).

清仓义卖会是一种不定期举行的出售私人旧物的非正式活动，卖主不需要持有营业执照或缴纳营业税（不过，在某些行政辖区，需要出示售卖许可证）。

Time Domain Algorithm and Research on Relative Topic in Scrambling System which does not Required Frame Synchronization

无需帧同步保密机中有关问题的研究及时域算法HSDPA中的帧同步机制

Therefore, third party testing to LHAMA is not required.

所以，没有要求进行对LHAMA的第三方测试。

Some experience with Eclipse is helpful, but not required.

具有一些Eclipse方面的经验会有所帮助，但不是必需的。

A priori knowledge of the sign of the control direction is not required.

该策略不需要控制方向符号的先验知识。

Exclude strategy& Identify the bits that are not required or private

排斥策略――指定不需要的或私有的部分

This important distinction means that decisions about which worker does what work are not required.

这一重要区别意味着，关于哪个工人做哪项工作的决定不是必需的。

Individual privileges for objects accessed inside the routine are not required.

对于这个例程中访问的对象，不需要具有对应的特权。

This behavior is not required, however.

然而，这些动作不是必需的。

You are not required by any law to sign these authorities.

现时并无任何法例规定你必须签署这些授权书.

The ticket had a strict no-transfer policy, but since passport information was not required when policy, any Canadian Elizabeth Gallagher can policy it ．

这张机票有严格的禁止转机政策,但由于政策规定时不需要护照信息,任何一个加拿大人伊丽莎白·加拉赫都可以办理。

Builders in developing countries are often not required to build strong buildings.

发展中国家的建设者经常都没有被要求建造坚固的建筑物。

A time period when you are not required to work.

不须工作的一段时间。

Open out and cut away all the seam amounts not required.

放开并剪去不需要的缝份量。

Leaving the instances running when they are not required can increase the cost.

在不需要实例的时候运行实例可能会增加成本。

The host image is not required for watermark detection.

水印的检测不需要使用宿主图像。

In that case, an XML schema is not required.

在这种情况下，XML模式不是必需的。

Based on that information, you can delete indexes that are not required.

您可以根据通过这些方法获得的信息删除不需要的索引。

This step is not required.

此步骤不是必需的。

Set to required if applicable ( default is NOT required).

如果适用，设置为必需（缺省为非必需）。

Obviously, a DSL is not required in every case.

显然，并非每种情况下都需要DSL。

Root hints are not required because this server is a root server.

此服务器是根服务器，不需要根提示。

Question the things that you think are not required.

问题是那种你认为不太必要的东西。

An extension number is not required.

分机号不是必需的。

Additional revisions were not required for the treatment of these complications.

这些并发症不需进行再翻修治疗。

In Britain, students are not required to learn a foreign language.

在英国,学生不必学外语。

A hard disk is not required but can be used to host the operating system.

磁盘并非必要，但可以用来托管操作系统。