查询词典 conservation

The main contents include the ray phenomenon and its generation conditions; the deduction and physical illumination of wave action conservation equation and wave number conservation equation; ray theory for sinusoidal waves; Fermat's principle; the variation of amplitude in the case of straight and parallel depth contours and circular depth contours; the amplitude near the caustics; wave trapping; deduction of mild-slope equation and the relevant numerical solution methods.

讲授折射现象及其发生的条件；波作用守恒方程和波数守恒方程的推导及物理解释；稳恒正弦波的控制方程及射线方程；费马原理；利用射线方程研究等深线是平行直线和圆周线时波振幅的变化，特别是焦散线附近波高的变化以及由此而产生的波的俘获；缓坡方程的推导及有关的数值求解方法。

In general, the decline of American Laissez-faire at the end of nineteenth century, conservation movement and the dream that Progressionist searching for rebuilding Safety valve of West are the reasons The National Reference policy not only exert a great influence on west conservation and deep economic exploitation, but also on the administration power of federal government expansion.

总的说来，美国发展西部灌溉政策由自由放任向国家干预的转变经历了一个漫长的时期。

This component will develop grazing systems and rangeland conservation technology to demonstrate the production and conservation benefits planned grazing management.

这个分项目要建立放牧制度和草场保护技术，示范在这个放牧管理制度下的生产和保护效益。

In order to get rid of some existing shortcomings of the conservation scalar quantity method, it was simplified under the precondition that the law of the physical conservation was being observed.

笔者针对守恒标量法的某些缺点，在遵守物理守恒定律的前提下，对其进行简化。

And, on this basis, the VC++ language was used to program the computer. The computerized example was compared with the practical test, and the result showed that the simplification made to the conservation scalar quantity method is feasible on the whole, and compared with the original conservation scalar quantity method, the simplified method has the advantages that programming is more simple, and calculation time can be shortened.

在此基础上，用VC++语言进行编程，将计算后的实例与实际的试验对比验证，结果表明：对守恒标量法所作的简化基本可行，与原来的守恒标量法比较，简化后的编程简单，计算时间缩短。

Meanwhile, the great progress of molecular scatology has also been made day by day and results inferred from it are widely accepted in the world. Therefore, it is of great potentiality to apply this method in the behavioral ecology and conservation biology of endangered species, and it will also be used in conservation genetics more and more in the future.

因此，今后该研究方法在珍稀濒危动物行为生态学和保护生物学等研究领域中将具有很大的发展潜力，越来越多的有关珍稀濒危动物保护遗传学的研究将采用该方法进行。

Methods 11 patients with supinator syndrome definitely diagnosed were treated with conservation treatment, 4 ineffective cases with conservation treatment were treated with operation. The following-up was performed for 6~12 months to evaluate the therapeutic effect.

对11例旋后肌综合征患者确诊后先行非手术治疗，其中4例非手术治疗无效者行手术治疗；随访6个月～1年，观察患者的疗效。

Both teams hope that their work together will extend beyond the tomb itself, and that the project by providing a model case study for the practice of conservation on the Theban West Bank will enhance conservation practice and knowledge regionally.

双方都希望他们的合作不仅仅局限于这个陵墓，还希望该项目通过对底比斯西岸实施保护，提供一个案例研究模式，提高区域性的保护实践及知识。

Green conservation for manual pruning inefficient, labor-intensive, and the motor type Brush Cutter, Hedge machine, turf machine prices high, the high cost of oil, gasoline oil ratio of hard to grasp the high failure rate (especially in summer heat easily pull-cylinder), and high maintenance costs, factory development and production of environmentally friendly energy-saving multi-function portable electric garden pruning machine (ie: portable electric tea light trimming machines), portable electric garden pruning machine (ie: portable electric tea in the pruning Taiwan Karikomi machines), portable electric lawn cutting machine patented product, has passed the provincial Science and Technology Commission of the technical appraisal and quality supervision departments of the country testing, alternative energy Brush Cutter, Hedge machine, improve operating efficiency and reduce the conservation costs, greatly reduced Noise!

针对绿化养护修剪人工作业效率低、劳动强度大，而机动型割灌机、绿篱机、草坪机售价高、油价成本高、汽油机油配比难掌握、故障率高、维修费用高昂等问题，本厂研制生产环保节能型出便携式多功能电动园林修剪机(即：便携式电动茶树轻修剪机)、便携式电动园林修枝机（即：便携式电动茶树中修剪台刈机）、便携式电动草坪修剪机专利产品，已通过省科委的技术鉴定和国家质量监督部门的检测，可替代高能耗割灌机、绿篱机，提高作业效率、降低养护成本，大大降低作业噪声！

Because of the space is uniform,So that the momentum conservation is occurrence in nature,it explain the momentum conservation is a attribute of the space.

由空间的均匀性而导出的动量守恒，说明动量守恒是物质空间的一个基本属性，动量守恒在整个物理学的框架中应具有定律的基础地位。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。