叶斑

Field investigations during the winter demonstrate that Tetranychus urticae can imperil the weeds in orchards as well, such as shepherds-purse, plantain etc.

这些杂草的存在，一方面使得二斑叶螨可以转移取食，躲避农药毒害，另一方面为其提供了较为理想的越冬场所。

In order to evaluate the resistance risk of meilingmycin and chlorfenapyr to Tetranychus urticae , resistance selection by slide slip method were carried out in laboratory. The related susceptible population of T.

在温室内模拟田间药剂的选择压力，用梅岭霉素和溴虫腈对二斑叶螨 Tetranychus urticae 以浸渍法逐代处理，选育其抗性种群，评价其抗性风险性。

North American herb having whorled leaves and terminal clusters of flowers spotted with purple.

北美的一种杂草，具有带紫色或带紫斑色的轮生叶，顶端有头状花序。

North American herb having whorled leaves and terminal clusters of small pinkish or purple flower heads.

北美的一种杂草，具有带紫色或带紫斑色的轮生叶，顶端有头状花序。

Comparison on the effectiveness of different cryoprotectants with chicken embryo primordial germ cells,Effect of heroin dependence on expression and function of glucagon in islet a cells of rats,Establishment of transgenic mouse line skin-specifically expressing hCTLA4-Ig,Resistance selection by meilingmycin and chlorfenapyr and activity changes of detoxicated enzymes in Tetranychus urticae.

文章摘要：鸡胚胎原始生殖细胞对不同冷冻体系适合性的研究，海洛因依赖对大鼠胰岛A细胞胰高血糖素表达和功能的影响，皮肤组织特异性表达hCTLA4-Ig转基因小鼠品系的建立，二斑叶螨对梅岭霉素和溴虫腈的抗性选育及其解毒酶活力变化，北京市褐家鼠种群遗传多态性及与汉坦病毒分布关系的研究，金乌贼同工酶分析，Nogo—A在成年大鼠脑内神经元的分布。

When crypsis—the ability of an organism to avoid detection—fails, Deroplatys angustatat, a dead-leaf mimic from Southeast Asia, can flash bright colors and eyespots on the undersides of its legs and forewings to startle enemies.

当crysis——生物避免被发现的能力不能奏效的时候，东南亚的一种模仿腐叶的螳螂Deroplatys angustatat，可以亮出其腿部和前翅下侧的明亮的颜色和眼斑，将敌人吓得心惊肉跳一跳。

Cinnabarinus.The life table of experimental population of T. urticae Koch was established at constant temperature of 25 C, illumination time of 16 hours one day and humidity of 50%.The result of the experiment indicated that the value of the innate capacity of increase was 0.2634, 0.1788, 0.2098, 0.2280, 0.1538 on kidney bean, cotton, apple, aubergine and capsicum respectively and the quantity of the offspring obviously increased. When the age distribution of experimental population was steady, the amounts of the immature age were 88.3335%, 85.3052%, 85.0386%, 87.3787% and 86.8404% on five host plants respectively and the amounts of the adults 11.6636%, 14.6946%, 15.0635, 12.6218% and 13.1598% correspondingly.

通过对二斑叶螨在5种寄主植物(四季豆Phaseolus vulgaris、棉花Gossypium hirsutum、苹果Malus pumila、茄子Solanum melongena、辣椒Capsicum annuum)上的实验种群生命表的组建分析，计算出其在这5种寄主植物上内禀增长力r_m分别为0.2634、0.1788、0.2098、0.2280、0.1538；次代种群数量显著增长，在不同寄主植物上每雌产雌数存在极显著差异；在稳定种群年龄分布中，未成熟期在5种植物上分别占总量的88.3335％、85.3052％、85.0386％、87.3787％和86.8404％，成螨期分别占总量的11.6636％、14.6946％、15.0635％、12.6218％和13.1598％；对致死率为99％的不良环境的反应时间都小于30d。

LINEAR INDICATORS OF MOVEMENT DIRECTION MINERAL ELONGATION LINEATIONS, STRETCHING VERSUS FOLIATION INTERSECTION AXES IN PORPHYROBLASTS FIAs AND THEIR RELATIONSHIP TO DIRECTIONS OF RELATIVE PLATE MOTION

线状指示物斑状变晶叶理交切轴板块的相对运动，-运动方向的线状指示物与斑变晶中叶理交切轴FIAs的比较及其与板块相对运动的关系

In order to understand the mechanism of interaction protection whether or not the mechanism induced by dsRNA, we make use of the virus- Tomato Mosaic Virus to construct the inverse overlapped clone through the positive and inverse RNA and intron, which transcriped to dsRNA in outer.

结果发现，与对照相比，当 ToMV 与 dsRNA 一起接种时接种半叶枯斑数明显减少，表明 dsRNA 对 ToMV 有一定的抗性。

The results showed that the four pear varieties treated with indocalamus bags had russet fruit skin with high density of brown rust spots, which caused poor fruit appearance of 'Cuiguan','Xueqing','Wonwhang' and lowered their commercial value. However, the fruit appearance of 'Pogua' pear changed better.

结果表明：4个砂梨品种箬叶袋套袋后果实呈黄褐色，果面覆盖较多的褐色锈斑，严重影响翠冠、雪青和圆黄等现代砂梨品种的果实外观品质和商品性，但改善了蒲瓜梨的外观品质。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失