查询词典 spot blotch

Ata28 strain exhibited marked suppression of Tbs3 strain which is the pathogen of tobacco brown spot on PDA plates, and the Ata28 strain had the good control efficiency of tobacco brown spot.

采用紫外线诱变Ata28菌株时，通过预备实验，计算Ata28菌株在不同诱变时间的致死率和正变率，选择该菌株的最佳诱变时间10s，20s，30s诱变；通过平板对峙培养，筛选出15个突变菌株在PDA平板上可明显抑制Tos3的生长，抑菌带高于出发菌株Ata28，抑菌带最大值达9.4 mm；在温室控病中，获得了对烟草赤星病有较好防效的突变菌株Uv-126，烟苗经Uv-126菌液处理3d后接种Tos3的防治效果达52.2％，比出发菌株Ata28的防治效果好。

The simulation was conducted by using steel 25 powder. Results show that great temperature gradients exist in the front of laser spot, and phase transformation temperature of powder around laser spot is higher than the powder's melting point.

以25号钢粉末为烧结材料进行了数值模拟，模拟结果表明：激光烧结过程中，在光斑中心的前端存在着极大的温度梯度；光斑中心的温度高于金属粉末的熔点，烧结过程中存在液相。

The result shows that the highest temperature is about 2.8×103℃ at the spot and the temperature declines gradually along the radius with the center of the spot.

模拟结果表明光斑中心处温度最高，为2.8×103℃，并以光斑为中心逐层降低，等温线近似椭圆形，椭圆中心位于光斑后方。

And this paper introduced the principium, design ideal and approach of waveform presetting of waveform controlling at will The function of relevant hardware circuit controlling was design in this paper uses litter content RLC surge circuit in simulating the current signal of energy storage welding, and took it as Ug to control the inverter cap energy storage spot welding machine. It realized HFPEC resistance spot welding with hardware circuit and got the effect as good as the system controlled by industrial computer and realized the customization and the low cost of welding machine.

本文所设计的相应硬件控制功能，采用小容量RLC 放电回路来模拟输出储能焊过程的电流波形，由此作为电流给定信号直接控制逆变式电容储能点焊电源，实现了完全由硬件电路构成的高频脉冲电阻点焊，能够获得焊接设备的专用化和低成本化的结果，并且可以得到与工控机控制系统相当的焊接效果。

In this paper, motion model of star spot which is combined with the effect of CCD noise has been established. The centroid accuracy of the star spot affected by sub-pixels arithmetic and CCD noise were analyzed at different exposure time with CCD47-20 chip, and the optimum exposure time was calculated.

建立星敏感器星点像移模型和CCD噪声影响模型，分析了星点质心定位精度与曝光时间的关系，并以CCD47-20为例，对星敏感器的曝光时间进行了优化。

When the elastic modulus is high, stress and strain are mainly concentrated at edge of the overlap region, while those in weld spot zone are relatively even; when the elastic modulus is low, stresses in the adhesive layer are small while stresses are concentrated to a certain extent at edge of the weld spot.

分析发现，胶粘剂弹性模量对接头中应力应变分布的趋势有明显影响，胶粘剂弹性模量高时，搭接区边缘附近区域应力应变高，焊点区应力应变值相对较小；弹性模量低时，焊点边缘处存在一定的应力集中，胶层中应力较小。

Since China started the new Pearl River Bridge (six two-way carriageway, within the loop Guangfu radiation engineering, bridge building, exchange of strings), the next year recruiting students of the National Model High School --- Guangzhou 1 Zhongshan University Tansha new site, has now embryo of the river "spot zone" three projects, big Tansha island transport network will show a "sea" three-dimensional structure, and supporting education, environmental management, integrated governance also have "changed face," and there are Liwan investment is transforming the north-south axis on the island bridge builder ----(two-way four lane), the new scheme people at the district level hospitals, district of 113 million yuan a "Tianlu" project (construction Green Square, along the Green Belt) Tansha Island makes big tourist scenic sections of the Pearl River in Guangzhou's largest island fast becoming hot spot for investment, early Liwan District American business in Hong Kong will focus on the recommendation of the Great Tansha Island, Macau has many investors concerned.

加上去年中开始动工的新珠江大桥（双向六车道、内环路广佛放射线工程、桥中建互通式立交）、明年即对外招生的全国示范高中---广州市一中大坦沙新校址、已现雏形的沿江&亲水区&三大项目，大坦沙岛的交通网络将呈现&海陆空&立体架构，而教育配套、环境整治、综合治理等亦纷纷&变脸&，还有荔湾区正在投资改造的岛上南北轴----桥中路、计划新建的区级人民医院、区里1.13亿元启动的&添绿&工程（建绿化广场、沿江绿化带等），使得大坦沙岛这个广州珠江旅游风景河段上最大的岛屿迅速成为投资热土，年。。。。。。

In recent years, with the development of new material and new technology, the process of spot welding is known more deeply, and the new demands for better spot welding quality are urgent.

近年来，由于新材料、新技术的发展，对点焊过程有了进一步认识，同时也对点焊的质量控制提出了新的要求。

The results indicated that the distribution of spot and rot are all "T" shape, there is no relation of spot and rot. To identify material's resistance to low calcium should base on these two symptoms.

结果表明心叶在离体条件下斑点和枯边均呈正态分布，并且二者的发生无相关性，材料抗性的评价应综合斑点和枯边两个症状。

Our products includes special use lighting, tower lighting, street lighting, spot lighting, wall washer lighting, ceiling lighting, wall lighting, landscape lighting, underwater lighting, ground lighting, wall stair lighting, stage lighting, recessed lighting, track/spot lighting, table lighting and pendant lighting.

我们的产品包括球场灯、高塔灯、路灯、投光灯、投射灯、洗墙灯、条灯、吸顶灯、壁灯、筒灯、草坪步道灯、水底灯、地埋灯、阶梯灯、格栅灯、崁灯、轨道灯、台灯、艺术吊灯等。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。