查询词典 abrupt

There is abrupt phase change in nonsinusoidal waves modulation. It can easily produce impulse current and bring large difficulty to high-power emission system; so it is not beneficial to holding the orthogonality between the orthogonal pulses and demodulating information.

非正弦波调制信号存在相位突变，在工程实践中易产生较大的冲击电流，给大功率发射系统带来较大困难；而且相位不连续也不利于保持正交脉冲间的正交性，不利于信息的正确解调。

The studies have showed that some geological events, such as Late Palaeocene Thermal Maximum, had possibly related to the decomposition and outgassing of gas hydrate. Except the strong and abrupt methane releasing in the geological history,...

由于天然气水合物中甲烷逸出对全球气候影响的研究刚刚起步，还缺乏海洋沉积物和海水中甲烷传输的恰当模式，甲烷在海水中的溶解度、甲烷的氧化作用及上升流等因素对其的影响程度，以及它对大气甲烷和二氧化碳浓度变化的具体贡献等目前还很不清楚，亟需深化研究。

Based on this idea, the author has chosen two typical loess sections of Luochuan, and Xifeng for this study, collected the successive loess columns; To probe the conditional experiments of BeO sample preparation and measurement, and improve the existing method; On the basis of the technology improvement, the author has finished 402 samples' BeO preparation and AMS measurement; Also at the same time, to separate quartz from samples at 1 cm interval for both Luochuan and Xifeng sections systematically, to carry out measurements of quartz grain-size, SUS, grey scale, carbonate content and bulk sample density; By using the grain size model, the author has set up the chronological framework for both Luochuan, and Xifeng sections and the time sequence of millennial scale abrupt climate events recorded in loess strata, and reconstructed the East Asian monsoon history over 130ka by using multi proxies; Finally, to discuss the possible mechanisms of palaeoclimatic changes tentatively.

详细地球科学的发展离不开高精度和高分辨率的研究。运用长寿命核素如〓Be作为环境过程的示踪，已成为不可替代的有效工具。本论文选择洛川、西峰两个典型的黄土剖面，连续采集柱状样；探索了BeO样品制备、测量的条件实验，改进了原有的方法，完成了402个BeO样品的制备和AMS测量；同时还系统地分离洛川、西峰剖面高分辨率（1cm）黄土、古土壤样品中的碎屑石英，测量了碎屑石英粒度，以及全样的磁化率、灰度、碳酸盐含量和容重等古气候代用指标；采用粒度年代模式建立了洛川剖面和西峰剖面的年代标尺，建立了黄土地层记录的千年尺度的气候突变事件的时间序列，多指标重建了最近130ka东亚季风变迁史；初步讨论了古气候变迁的可能机制。

Went to work on July 5, li Juan of manager of Department of Commerce runs to tell crown penannular jade ring with respect to flurried ground,"The network address of net of medicine of the whole people is inputted in Baidu today, link at a draught abrupt little, more than 80000 information previously, remained a page only 4 records ".

7月5日一上班，商务部经理李娟就慌慌张张地跑来告诉王冠珏，&今天在百度里输入全民医药网的网址，链接一下子突然少了，以前的八万多条信息，只剩下了一个页面4条记录&。

On July 5, li Juan of manager of Department of Commerce of net of medicine of the whole people tells crown penannular jade ring, the network address of net of medicine of the whole people is inputted in Baidu today, link at a draught abrupt little, many 80 thousand information previously, remained a page only 4 records.

7月5日，全民医药网商务部经理李娟告诉王冠珏，今天在百度里输入全民医药网的网址，链接一下子突然少了，以前的8万多条信息，只剩下了一个页面4条记录。

The abrupt descent of Penistone Crags particularly attracted her notice; especially when the setting sun shone on it and the topmost heights, and the whole extent of landscape besides lay in shadow.

盘尼斯吞岩的陡坡特别引起了她的注意；尤其是当落日照在岩石上和最高峰，而其余的整个风景都藏在阴影中的时候。

The abrupt descent of Penistone Crags particularly attracted her notice; especially when the setting sun shone on it the topmost heights, the whole extent of landscape besides lay in shadow.

盘尼斯吞岩的陡坡特别引起了她的注意；尤其是当落日照在岩石上和最高峰，而其余的整个风景都藏在阴影中的时候。

Based on T213 numerical forecast products, the abrupt city flood caused by heavy rain in Kunming, Yunnan province on June 24, 2006 is analyzed. The results indicate that the event has a close relation with the southward movement of upper shear line and the peripherad southwest warm and wet airflow.

2006年6月24日云南昆明发生了当年最为严重的一次城市洪涝，利用T213数值预报产品资料对这次突发性洪涝灾害的气象成因进行了诊断分析，结果表明此次强降水与高空切变线南压及西太平洋副热带高压外围西南暖湿气流有关，高空切变线南压有利于引导北方冷空气南下入侵，而西太平洋副热带高压外围西南暖湿气流为此次洪涝灾害的爆发提供了丰富的水汽。

In addition, the summer AO mode changes much between before and after the abrupt change, especially the pleion in the East Asian land.

从夏季AO指数和EASM指数奇异谱分析的重建序列中发现，它们的长期趋势以及准20-30a周期的重建序列的相关系数较高，而它们的年际的周期的重建序列的相关系数不显著。

"Secretary Rumsfeld and I agreed that sometimes it's necessary to have a fresh perspective," Bush said in the abrupt announcement during a postelection news conference.

在选后新闻发布会上，布什突然宣布说&拉姆斯菲尔德部长和我同意有时候有必要开创一种新的局面。&

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。