交替使用

It is illegal to use :: outside of an alternation.

在交替元素之外使用：：是违法的。

An export item is presented.

以具体进出口贸易项目为主线，经过导学项目及知识准备，教师开始引导学生自主地交替进行各种真实业务背景下的操作和训练，学做合一，教师配合指导、答疑、评价、测试，将理论知识的运用置于一个真实的项目中展开，项目完成后学生能够牢固掌握相应进出口业务单证的制作与使用技能。

The plug-in has three advantages: First, each packet is authenticated by a One-time Signature, so there is no need for both sender and receiver maintain a buffer and there is no delay for signing and verifying and authentication failure of current packets do not effect the authentication of other packet. Second, we design a mechanism to regenerate Merkle Trees, so just only one normal digital signature signing operation is required to provide unlimited number of One-time Signature for signing unlimited length of

插件有如下特点：一、使用一次签名对每个包单独签名和认证，接发双方不需要缓存包，没有延迟，而且当前包的认证失败或者丢失不影响其他包的认证；二、设计了两颗树交替更新的机制，只需要开头一个普通数字签名，就能确保有效的一次签名能源源不断的生成，因此可对无限长的流签名；三、在包的层次上操作，因此可以处理任何流媒体类型。

For example, at 250 ℃ steam valve, the use of asbestos packing and co-lead by alternative Diego, the situation would reduce the steam leakage; some valves, medium constantly changing, such as the asbestos packing and Teflon tape common use, seal it better.

例如，在250℃蒸气阀门中，用石棉盘根和铅圈交替迭合，漏汽情况就会减轻；有的阀门，介质经常变换，如以石棉盘根和聚四氟乙烯生料带共同使用，密封效果便好些。

So ,with crop rotation, you don't grow the same plants at the same place for at least three consecutive years.

所以，如果使用植物交替种植，你不能最少在接下的3年内，在同一个地方种同一种植物。

In the intervention phase three different intervention strategies were conducted separately and then their effects were evaluated by immediate, reviewing, short-term, and long-term tests. Based on the results of intervention phase, the best intervention strategies, CSDI plus multisensory and self-monitoring, were conducted in the final phase to verify its effeteness.

交替处理阶段分别针对三种策略进行教学并评量其立即、复习、短期与长期的学习成效；最后阶段则使用效果较佳之「基本字带字加多感官加自我监控」策略继续进行教学，看是否能维持成效。

It tries its best to avoid using the finite difference grid, so that it can eliminate the artificial dispersion which arises from the injudiciously finite difference grid.

第四章提出了一种交替方向区域对分的FCM，用于模拟二维多孔介质中的生物降解过程，它试图尽可能的避开使用有限差分网格，从而消除由于网格选取的不合适而导致的人工弥散现象。

The use of jigging rods is specifically due to alternating currents during the fishing activity.

具体来说就是使用钓杆，由于水流交替期间捕鱼活动。

The nonverbal voice qualities, modifiers, and sounds which we use consciously or unconsciously support or contradict the linguistic, kinesics, or polemics messages either simultaneously or alternating with them.

我们有意识地使用或不自觉地支持或抗辩语言的非语言的音质、修饰词和声音， kinesics或者辩论消息或者同时或交替与他们。

In other words I consider prior and posterior to be an adequate division of whatever is ordered, so that we may use the terms order and priority or posteriority interchangeably.

换句话说，先天和后天可以成为划分有序事物的一对范畴，因此我们可以交替地使用秩序与先天或者后天这样的术语。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失