研究了灰斑和黑斑断口产生的机制。
The formation mechanism of grey and black spots has been studied.
杨树灰斑病优化管理技术的研究。
Study on the Optimal Management of Coryneum Leaf Blotch of Populinum Bres.
灰斑病是杨树的主要病害。
The grey leaf—spot is one of the essential diseases of poplar.
玉米灰斑病是严重威胁玉米生产的叶部病害。
The gray leaf spot(GLS) is a significant leaf disease in maize.
对玉米灰斑病在黑龙江省的发生情况进行了调查。
The investigation was done about incidence of gray leaf spot of maize in Heilongjiang province.
对焊缝缺陷脆性断口、灰斑、夹杂物提出了见解。
Some opinions about brittle fracture, gray spot and impurities in the weld are proposed.
山茶灰斑病是严重影响山茶观赏价值的重要病害。
然而，数量最多的是杓鹬，脚鹬和灰斑鸻也被记录到。
However, nationally important numbers of Curlew, Redshank and Golden Plover were also recorded.
灰斑已成为无缝线路钢轨结构接触焊接头最突出的缺陷。
Grey spot has become the most conspicuous defect in resistance welding joint of the structure of continuous welded rail track.
玉米灰斑病是凤庆县近年突然暴发流行的一种玉米叶部病害。
Gray leaf spot of maize occurred suddenly in Fengqing County, Yunnan Province in the recent years.
降雨量和空气相对湿度是影响玉米灰斑病发生和流行的重要环境因子。
The key factors that affected the incidence and epidemic of this disease were precipitation and air relative humidity.
采用不同病级病叶、荚、粒，研究了大豆灰斑病对大豆产量和品质的影响。
The effects of soybean frog-eye leaf spot on yield and quality were investigated with different disease degrees in leaf, pod and seed infection.
研究了玉米灰斑病菌致病性分化的鉴定方法、接种方法和环境条件对其的影响。
This research studied the identification and inoculation methods of pathogenic differentiation of gray leaf spot (GLS) pathogen, and the effect of environmental conditions have also been considered.
由于钢轨接触焊接头灰斑与性能受众多参数综合影响，故采用正交设计安排试验。
Because of that both the grey spots and the performances of the rail resistance welding joints are under the synthetical influence of many parameters, the orthogonal design was used to settle tests.
脉动闪光工艺的有效热输入大，有利于降低落锤断口灰斑，适合焊接U75V钢轨。
The effective thermal input of pulse flash process is large, it can help reduce the drop weight test fracture of flat spot, which is suitable for welding U75V rail.
灰斑的存在易导致接头的脆性断裂。因此，控制灰斑对保证钢轨接触焊质量举足轻重。
The existence of grey spot may cause brittle crack of the joint, therefore, controlling grey spot occupy a decisive position to ensure the quality of rail resistance welding.
研究为精细定位供体cn165中第1和第4染色体上的抗灰斑病QTL奠定了基础。
Consequently, this study could lay a foundation for the QTL fine mapping on chromosome 1 and chromosome 4 in the donor parent CN165.
抗生素生物杀菌剂1％武夷菌素水剂对大豆灰斑病具有显著防效，防治效果平均为61。
The prevention and cure effect of 1% Wuyi-rhzomorph is significant for soybean frogeye leaf spot, its average effective percentage is 61.
脂肪的相对含量变化不大，绝对含量随病级增加而降低，并提出大豆灰斑病的防治方法。
Both absolute seed protein content and fat content were significantly affected by seed disease degree. Some measures for controlling the disease were also proposed.
作者以电子自旋共振技术（ESR）为手段对大豆感染灰斑病后叶内自由基代谢的变化进行了研究。
ESR was used to study the free radical metabolism in the soybean leaves infected by Cercosporium sojina (Hara) Liu & Guo.
尽管沃尔什还没满50岁，但他的面相比实际年龄要老，岁月和忧虑给他的脸上增添了皱纹，然而在一头渐染灰斑的沙褐色头发下面，那张脸还是一如既往地毫无表情。
Though he was in his late forties, the man's face appeared older. Creased by age and anxiety, it remained characteristically expressionless under sandy-brown hair sprinkled with gray.
危及到的物种还包括红喉潜鸟（red throateddiver）、金斑鸻（golden plover）及灰背隼（merlin）。
Other species at risk include the red throated diver, golden plover and merlin.
该研究总结出黑猫、灰猫、白猫和虎斑猫才是最理想的宠物猫。
It concluded that the ideal pet is a black, grey, white or tabby cat.
该研究总结出黑猫、灰猫、白猫和虎斑猫才是最理想的宠物猫。
It concluded that the ideal pet is a black, grey, white or tabby cat.
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