occurrence的例句大全

Apply grease to the engaging sections on the upper surfaces of the connecting sections of the lower structure with the crawler frames, and the connecting pin holes to prevent rust occurrence.

在与履带相连的底部结构和联结销孔的结合部位的上表面涂以油脂，以防锈蚀。

Some hypotheses have been suggested, e.g. the conflict between morphological and molecular evidence might result from parallel evolution and/ or convergence and occurrence of cryptic species.

关于分子与形态数据之间的矛盾，系统和分类学家也提出了诸多的假设，例如形态性状的平行进化或者趋同进化和隐种的存在。

In this paper, we simulate the evolution process of cumulative Coulomb failure stress change(Δ CCFS) in North China since 1303, manifested by secular tectonic stress loading and occurrence of large earthquakes.

本研究给出了华北地区700年来由于长期构造加载及地震断层错动导致的累积库仑破裂应力变化（ΔCCFS）的演化过程。

The general occurrence and distribution of internal surface hollow and hole defect of hot continuous rolled seamless tube are introduced.

介绍了热连轧无缝钢管内表面凹坑、孔洞缺陷的基本形式和分布规律。

Most of the third molar embryo had been formed and their tooth crowns had been calcified, the occurrence ratio was 84 0% in maxilla and 85 2% in mandible.

上下颌第三磨牙牙胚绝大多数已形成且牙冠已钙化完成，其出现率为上颌840%，下颌852%；

The term of tooth wear ( TW) is used to describe the loss of hard tooth tissue caused by friction between tooth occlusal facing or tooth facing and food during masticatory movement and non-masticatory movement under no occurrence of dental caries and external injury.

牙齿磨耗是指在没有龋齿及外伤情况下，牙齿在咀嚼运动和非咀嚼运动过程中，由于牙面与牙面间摩擦、牙面与食物间摩擦，牙齿硬组织的丧失。

The cavitation phenomenon exists widely in many domains with liquid transporting process. The occurrence of cavitation will decrease the performance of conveying machinery and cause cavitation erosion, lead to additional vibration. The uncontrollable cavitation will cause serious or even disastrous consequences.

空化现象普遍存在于诸多领域内液体输送过程中，空化的发生会造成输送机械性能的下降，产生空蚀破坏，引起机组振动加剧，无法控制的空化会产生严重的甚至是灾难性的后果。

For Keep away and beat the occurrence and spread of crime, police of every country using new technology of security examination to check dangerous goods or stuff violate a ban.

为了有效地防范和打击犯罪活动的发生和扩展，各国警方都使用新的安全检查技术装备对危险物品、违禁物品有针对性地进行防爆安全检查。

According to the gravel composition, distribution, occurrence features and sedimentary features, the Silurian basal conglomerate in southern Guizhou may be classified according to its genesis into the storm event sedimentary type, tide channel lag type, karst collapse type and beach accumulation type.

依据底砾岩的砾石成份、分布和产出特征，以及沉积特点等，把贵州南部志留系的底砾岩分为风暴事件沉积型、潮道滞流型、岩溶垮塌型及海滩堆积型四种成因类型。

Fruit of Asiatic cornelian cherry plant diseases and insect pests occurrence mechanism and prevention and cure counterplan research

山茱萸病虫害发生机理及防治对策研究

Disease occurrence and resistance evaluation of different wheat cultivars ( lines) to wheat leaf blotch

不同小麦品种（系）叶枯病田间发病情况及抗性评价

Predictive Method of Fault Occurrence Time of Centrifugal Blower Based on Neural Network

一种基于神经网络的离心式鼓风机故障发生时间预测方法

On the occurrence and control of Phytophthora Boll Rot of cotton in Shanghai

上海郊区棉铃疫病发生和防治研究

The coal seams were crossed frequently in the construction of Tianchi Coal Mine airshaft, and the gas content was great. The occurrence of coal seam situation was grasped by using borehole surveying and geologic column.

针对天池矿回风立井井筒施工中频繁揭穿煤层并且瓦斯含量较大的情况，通过打钻探煤结合地质柱状图准确掌握煤层的赋存情况；

Oxidative stress plays a crucial role during the occurrence of many diseases, such as heart diseases, idiopathic pulmonary fibrosis, falling sickness, and neurodegenerative diseases.

氧化应激在很多疾病的发生中都扮演了重要角色，如心脑血管疾病，特发性肺纤维化，癫痫，神经退行性疾病等等。

Pertaining to the occurrence of two sequential events without the intervention of any other such event.

指在两个顺序事件之间没有插入任何其它事件.

Phenomenon of occurrence credence crisis has historical reason already, have real reason again.

出现信用危机现象既有历史原因, 又有现实原因.

Lycopene can diminish cancer occurrence.

本文综述了自番茄红素被发现以来的几种化学合成方法.

Monseignor Maccari later reported that such assignations were a regular twice-weekly occurrence.

马卡里阁下后来报告说,这样的幽会每周固定举行两次.

ZHU En-Lin . The occurrence and management of oriental migratory locust. Beijing: Chinese Agricultural Press, 1999.

朱恩林. 中国东亚飞蝗发生与治理. 北京: 中国农业出版社, 1999.