查询词典 bright spot

All these results suggest that the significant control efficacy of the COS against the tobacco brown spot be mainly due to induction and improvement of the activities of defensive enzymes in the tobacco plants, which enhance resistance of the tobacco plants against the brown spot.

以上结果说明，几丁寡糖对烟草赤星病有显著的控制效应，主要是通过诱导、提高烟草植株有关防御酶的活性从而增强烟草植株对赤星病的抗病性。

Tobacco brown spot disease has been an important leaf disease in tobacco. In tobacco maturation period, this disease causes tobacco brown spot disease seriously, and makes large economic losses. Its main pathogen is Alternaria alterrrata Keisslar.

烟草赤星病是烟草的一类重要叶部病害，其主要病原菌为链格孢属真菌Alternaria alterrrata (Fties Keisslar，在烟草成熟后期危害十分严重，造成重大经济损失。

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。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48