查询词典 deep-going

In addition, the blank holding force that is required to avoid wrinkle and rupture during conical part deep drawing is researched. The necessity of reasonable blank holding force in pressing is expounded. From the view of mechanical analysis, the wrinkle critical condition of side-wall is derived for the first time by the stress state of side-wall, the main deformation region on blank. According to the critical condition of plastic instability for flange, side--wall, corner of punch on blank, The blank holding force in conical part deep drawing is divided into four different regions within its forming figure. The basic principle of reasonable blank holding force during stamping is summarized and provided. The mathematical model of reasonable blank holding force that avoids the wrinkle and rupture is established and verified by the finite element numerical simulation and the grid experiment method. The result shows that it is accurate and reliable.

此外，本文还研究了圆锥形件拉深成形过程中，随着拉深变形过程的进行，毛坯为避免产生起皱、破坏缺陷而对压边力的需求情况，阐明了圆锥形件拉深成形过程中压边力合理变化的必要性；由毛坯主要变形区悬空锥壁部分的受力变形情况，从力学分析的角度，首次推导得出了圆锥形零件悬空锥壁起皱失稳的临界条件；并根据主要变形区法兰、悬空锥壁及凸模圆角部分的塑性失稳临界条件，在其成形范围图中，将圆锥形件成形过程中的压边力划分为四个区域；总结并提出了圆锥形件成形过程中压边力合理变化的基本原则；建立了防止起皱、破坏缺陷产生的压边力合理变化的数学模式，并得到了有限元数值模拟及网格实验法的验证，证实了理论分析结果的正确性和可靠性。

Until about a century ago, the deep-ocean floor was completely inaccessible, hidden beneath waters averaging over 3,600 meters deep.

直到大约一个世纪以前，掩藏在平均3600米深的海水下的深海底部还是人类无法接近的。

The feasibility of its crawling on the deep-sea soft soil in Chinese deep-ocean mining area is discussed.

履带式行走平台作为深海采矿集矿机子系统的工作平台行走在海底沉积物上进行深海采矿作业。

TODAY, deep-ocean mining is done only by the oil and gas industry. Yet the dream of mining the mineral wealth of the deep has never gone away.

位于温哥华的鹦鹉螺矿业公司是这两家公司里比较超前的一家。

The result showed that the strong storm followed by mesoscale squall line was primary cause of strong sandstorm producing, steps and ladders short wave trough of 500 hPa was great criterion triggering system for the mesoscale squall line producing, the essential dynamic condition was provided by distortion field and the mesoscale low pressure of 700 hPa for the strong sandstorm forming and maintaining in mid-west of Hexi Corridor, the deep vertical circulation development condition was basic power that urged squall line to occur and sand dust to curl up, which was provided for the deep convection development by superimposition of lifting movement before ground cold front and ascendant current of secondary circulation in upper air jet entrance region, temperature and the barometric gradient around the cold front was enlarged by enhancement of ground thermal low and temperature diurnalvariation of afternoon, by which essential thermal energy unstable condition was provided for the gale and strong sandstorm eruption, the strong sandstorm appeared in downstream of -200 m^2s^(-2) center of vertical helicity, the vertical helicity had good instruction significance for development of squall line and landing region of sandstorm, the mesoscale squall line occurred in unstable stratification, basic condition of potential energy transforming as kinetic energy was provided by strong unstable stratification for the strong sandstorm forming and developing.

结果表明：中尺度飑线所伴随的强风暴是产生强沙尘暴的主要原因；500 hPa阶梯短波槽是中尺度飑线产生的大尺度触发系统，河西走廊中西部700 hp变形场、中尺度低压为强沙尘暴形成和维持提供了必要的动力条件；地面冷锋前上升运动与高空急流入口区次级环流的上升气流的叠加，为深对流发展提供了深厚的垂直环流发展条件，是促使飑线发生和沙尘卷起的基本动力；地面热低压的加强和午后气温的日变化加大了冷锋前后的温度和气压梯度，为大风、强沙尘暴爆发提供了必要的热力不稳定条件；强沙尘暴出现在垂直螺旋度为－200平方公尺/s^2中心的下游，垂直螺旋度对飑线的发展和沙尘暴的落区具有较好的指示意义；中尺度飑线发生在不稳定层结内，较强的不稳定层结为强沙尘暴形成、发展提供了位能转化为动能的基本条件。

The skin on the cuticle cell respiration is carried out in the gap, but also through the cuticle, pores and sebaceous glands absorb water and nutrients, in the hot weather, sweat and oil secretions greatly increased, together with the air of dust, pores are particularly vulnerable to the accumulation of dirt, if unable to do a good job of deep cleaning work, dead skin cells would be unable to come off naturally, resulting in the skin surface area of thick, so not only can not make your skin smooth breathing, even hinder the absorption of skin care ingredients, direct affect the quality of the skin, so deep cleansing and exfoliating the effort will have to work.

为什么深层的清洁护理？关于角质层皮肤细胞呼吸进行的差距，而且还通过角质层，毛孔和皮脂腺吸收水分和养分，在炎热的天气，汗水，油脂分泌大大增加，与空气中的灰尘一起，毛孔特别容易积聚污垢，如果无法做好深层清洁工作做好，死皮细胞将无法自然脱落，在厚厚的，所以不但不能使你的皮肤光滑皮肤的呼吸表面积结果，甚至阻碍护肤成份的吸收，直接影响皮肤的质量，使深层清洁与去角质的努力将不得不工作。

To find out the causes for tellurium enrichments in deep-sea sediments,the authors analyzed and compared tellurium concentrations and helium isotope compositions in the magnetic parts and those in the bulk samples of deep-sea sediments.

为了查明深海沉积物中碲异常的原因，笔者对比分析了深海沉积物中磁性部分与全岩的碲含量和氦同位素组成。

Employing modern deep drilling techniques, Chinese Continental Scientific Drilling Project is to drill a 5000 meter deep hole in the eastern part of Dabie-Sulu ultra-high pressure metamorphic belt that has global geoscientific significance.

中国大陆科学钻探工程(Chinese Continental Scientific Drilling Program，CCSD)是利用现代深部钻探高新技术，在具有全球地学意义的大别-苏鲁超高压变质带实施中国第一口5000米科学深钻，利用从钻孔中获取的岩心及液、气态样品及原位测量数据，进行多学科综合研究，揭示大陆造山带的深部物质组成与结构构造，重塑超高压变质带形成与折返机制，探索深部流体与生物圈，检测现代地质运动，建立长期的地下观测实验站及地壳深部物质研究基地。

The main factor that affects the resolution of seismic prospecting is Earth's absorption and attenuation effect on high frequency signals. Study and calculation of Earth's absorption and attenuation effect show that medium deep and deep reflectors over 135 Hz can not be recorded even by 24-bit seismometers.

地震勘探分辨率不高的主要原因是地层对地震波高频成分的吸收衰减，通过对地层吸收衰减深入的理论计算可知，既便使用 2 4位遥测地震仪，在中深层勘探中也无法记录主频超过 13 5Hz的地震波。

The book ends with Zarathustra joyfully embracing the eternal recurrence, and the thought that all joy wants deep, wants deep eternity.

&这本书结尾查拉图斯特拉高兴地拥抱永恒的复发，并认为&所有的喜悦要深，要深刻的烙印。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。