查询词典 occurrence

However, the party affected by the event of Force Majuro shall inform the other parties of its occurrence in writing as soon as possible and thereafter send a certificate of the event issued by the relevant authorities to the other party within 15 days after its occurrence.

该委员会决定是终局的，对双方均有约束力。仲裁费用，除另有规定外，由败诉一方负担。

Before the occurrence of ENSO, due to the anticyclonic anomaly in midlatitude of the South Indian Ocean, the anticyclonic anomaly over Australia tends to be enhanced through the dispersion of Rossby wave; In the meantime, the equatorial convergence of the southerly anomaly off the east of Australia and the northerly anomaly in the Philippine excite the onsets of the westerly anomaly in the equatorial western Pacific and the occurrence of ENSO.

在ENSO发生前，南印度洋中纬度为反气旋异常，并通过Rossby波的频散作用加强了澳大利亚附近的反气旋异常；同时，澳大利亚东部沿海的南风异常与菲律宾附近的北风异常在赤道辐合，促进了赤道西太平洋西风异常的爆发和其后ENSO的发生。

During the occurrence of neural tube, ventral side has been considered to be a center of signal occurrence.

修前在神经管的发生过程中腹侧已被证实是关键的调制信号产生中心。

This work is one of the most important bases of eliminating locusts. Studying the oogenesis of insects has important significance on demonstrating the reproductive mechanism and controlling locusts" fertility. At the same time, it"s an important means of studying the forecast of pests and the law of occurrence. It can reveal the law of ovipositing and explain the physiological basis of pests" occurrence, thus design "biorational insecticide.

研究昆虫的卵子发生对于阐明昆虫的生殖机理和控制繁殖具有重要的实践意义，是研究害虫预测预报和发生规律的一种重要手段，同时可以揭示昆虫大量产卵的规律，阐明害虫大发生的生理基础，从而设计出"生物合理的杀虫剂"，并为促进有益昆虫的大量繁殖提供理论依据。

The occurrence of nickel in pentlandite and magnetite is over 90% and the occurrence of copper in the chalcopyrite is over 95%.

四川杨柳坪镍矿石属于低品位镍矿资源，其扩石中镍的品位为0.45%，主要以硫化物形式存在。

Research on the occurrence of grape phylloxera symptoms, pathogen characteristics, infection process, the occurrence of the conditions, as well as control methods, thereby enhancing the production of grapes.

研究葡萄根瘤蚜发生的症状、病原特征、侵染过程、发生条件、以及防治方法，从而提高葡萄的产量。

Objectives To compare the difference of occurrence rate of anxiety between the-first-time and re-treatment rural patients with pulmonary tuberculosis and explore the possible factors affecting the occurrence of anxiety.

目的 比较初治与复治肺结核患者焦虑发生率的差异，探讨其影响因素。

Lower estrogen level in females and lower testosterone level in males have been proved to be risk factors for AS. But organisms regulation and responsion to sex hormone level is an exquisite and complicated process with individual difference. It is not so simple as imaged by externally regulate sex hormone balance to prevent or delay the occurrence of AS. Great disputes exist in whether supplement of sex hormone, especially estrogen, can delay the occurrence and development of AS.

女性低雌激素状态，男性低睾酮状态已被多个临床研究证实是AS的易患因素之一，但由于机体对性激素水平的调节以及机体对性激素水平变化的应对是一个相当精细和复杂的过程且存在个体差异，试图通过外在地调整性激素平衡来预防或延缓AS发生并非象想象的那么简单，人为地补充性激素尤其是雌激素能否延缓AS发生与发展目前存在着争议。

In Xinxiang Aera of Henan Province in 1997, the occurrence of cotton pests were investigated in the Bt cotton and common cotton fields The result showed that the numbers of cotton bollworm egg were similarly in both fields, but that of survival larvae on Bt cotton were lower than that on common cotton The occurrence of cotton aphis was no difference but the spider mite were more heavy in Bt cotton field At the same time,control strategy against cotton pests were discussed for the Bt cotton

对河南新乡棉区种植的转Bt基因棉和常规棉棉田虫情进行了定点系统调查和大田普查，结果表明：棉铃虫在两种棉田棉花上的落卵量无明显差别，而幼虫存量差异显著，Bt棉棉花上幼虫存量显著降低；Bt棉对棉蚜的发生无明显的影响，而Bt棉上棉红蜘蛛的发生比常规棉略重，同时初步研究制定出种植Bt棉后的棉虫综防对策

Due to the problems of being difficult to calculate its occurrence pattern, a new stochastic method based on maximum entropy principle to assess the occurrence frequency of voltage sags caused by line faults was proposed in this paper.

针对其随机规律难以直接计算的问题，提出利用最大熵原理评估线路故障引起的电压凹陷频次新方法。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。