中项

The study of propagation of atmospheric gravity wave constitutes an important part in ionosphere physics, which is significant for researching the coupling between upper and lower atmosphere, the coupling between north and south of the Earth and the coupling between ionosphere and thermosphere.

大气重力波的传播机制研究是电离层和高层大气动力学中的一项重要内容，对于深入了解近地空间中能量的上下耦合、南北耦合，以及电离层高度上的电离层-热层耦合，具有重要的学术意义。

In a quark model description of the nucleon, however, such time-derivative term might contribute because it is hard to construct a true Hamiltonian eigenstate of relativistic interacting quarks.

我们同样也注意到在一个复合粒子的现象模型中这一项可能是非零的，因为这个模型中的波函数可能不是真实的Hamiltonian本征态。

In conclusion, the modal not generally displays expectational outcomes that two strategies increasing the rate of the installation of spray system and fire insurance but alsoshows the impact given by strategies. With difference between simulated outcomes and real statistics, it has the ability of suggesting critical variables ignored at first.

对於提高洒水系统安装率及提高火灾保险两项设计策略，除在结果展现符合一般期望之结果外，并能在系统其他内生变数的变动趋势中观察策略对系统整体之影响，同时又能由模拟结果与实际数据资料的差异暗示原模式中其它原先未列入的变因存在。

The profit-sharing plan is an effective measure in accordance with the needs of the present situation.

让员工参与到企业的经营管理中、参与到企业的利润分配中、增强员工的归属感不失为可行之策，利润分享计划是顺应当前需求的一项有效激励措施。

The problems of dialect intonations appearing in the recitation part of PSCare discussed in this paper.

主要讨论方言区应试人在普通话水平测试朗读项中因&语调偏误&而失分的情况，反思目前方言区普通话语音教学的不足之处，提出必须特别重视节律特征在语音中所起的种种不同作用，建立起一套系统的语音教学原则和方法。

Burrowing in the dry, hard soil of the Kalahari Desert in southwestern Africa is tough work, so the lazy group spends this time eating and sleeping.

在西南非洲的喀拉哈里沙漠中，挖掘干燥坚硬的土层是项艰巨的工作，而懒惰的那帮鼹鼠群却在睡眠和吃喝中打发着时间。

The mezza voce technique is an advanced skill in vocal trainings of opera singing. This article emphasizes on singing skills and explores its technical category, physical theories, artistic expression and teaching practice.

美声唱法中&半声&演唱技能是在声乐学习的高级阶段要研习的一项演唱技能，本文以演唱技能为着眼点，分别从技能归属、生理论、艺术表现功效和在教学中的应用与获得等四个方面进行了有关研究，说明了&半声&演唱技能是美声唱法的一种科学的、高于自然的演唱技能。

In a randomized,placebo-controlled study, 30 pediatric patients undergoing openheart surgery were randomly assigned to one of two equal groups.

在一项随机安慰剂对照的研究中，将30个行开心手术的患儿随机平分到两组中。

A survey of newspaper articles over the past two decades shows a sharp spike in mentions of the dreaded D-word, as commentators have started to think the worst. The prognostications may possibly turn out to be true, or perhaps the only thing we have to fear are the fears of journalists themselves.

从一项对于&危机&二字在过去20年的新闻报道中出现频率的调查中可以看到，令人胆颤的&危机&二字的出现频率明显凸显，以至于舆论导向不得不开始做最坏的打算，有关于危机的预警或许会被证实，亦或我们真正应该害怕的是新闻报道者们对于危机的自身恐惧。

From the origin of collective agreement and its historical development in western countries, we can see the importance of its status in social lives and the reasons why it has developed into a basic system in the western world.

从集体合同的起源及在西方的历史演变过程中，我们可以看出集体合同制度在社会生活中的重要作用以及它之所以发展成为西方世界一项基本制度且长盛不衰的原因。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。