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Las multiplied again in the hemocoel and then invaded other host tissues, including hemocytes, nervous tissue, fat body, trachea, and muscle. Eventually, Las invaded the salivary gland and the Las-infected psyllids were enabled to transmit Las to other host plants. Symptoms of serious pathogenesis occurred in the muscle tissue.

黄龙病菌必需先穿过中肠上皮细胞并於中肠细胞内进行增殖,接著进入血腔继续进行增殖,并逐渐移行至其他组织包括血球、神经、脂肪体、气管上皮细胞及肌肉等,最后抵达唾腺,届时柑橘木虱即具有传播黄龙病的能力。

Any of numerous small bloodsucking parasitic arachnids of the family Ixodidae, many of which transmit febrile diseases, such as Rocky Mountain spotted fever and Lyme disease.

虱类:蜱总科的多种小型吸血寄生蛛形动物,其中许多可以传播落基山脉斑疹热和莱姆氏病等热病

A study on the genus Lappula of China.

中国鹤虱属的研究。

A study on the genus Lappula of China.

标题 中国鹤虱属的研究。

With LI-6400 portable photosynthetic system the net photosynthetic rates,transpiration rates and water use efficiencies of two ephemeral plants,Lappula semiglabra and Tetracrne quadricornis in the Desert Area of the Junggar Basin, were studied.

运用LI-6400便携式光合测定系统,研究了准噶尔盆地荒漠区2种典型短命植物——狭果鹤虱和四齿芥的净光合速率、蒸腾速率和水分利用效率特征。

The dominating pests of vegetable are Trialeurodes vaporariorum,Liriomyza sativae, Polyphagotarsonemus latus in greenhouse.

阐述了温室白粉虱、美洲斑潜蝇、菜蚜、根蛆和茶黄螨等温室蔬菜害虫的发生与为害,并提出了无公害治理措施。

Leeches and ticks can be easily removed with a pair of tweezers.

水蛭和扁虱可以很轻易的用镊子移除。

Results show that the insect community structure in the Bt fields differed sharply from that in the CV fields. The populations of the Lepidopterous pests, such as cotton bollworm, corn borer, diamond bollworm and cotton leaf caterpillar, decreased significantly in the BT fields, while the populations of non-target pests with piercing-sucking mouthparts, such as leaf bugs, cotton spider mites, cotton aphids and whiteflies, increased obviously. Much more predators, such as spiders and ladybirds, and much less parasitiods of Helicoverpa armigera were observed in the BT fields.

结果表明,与常规棉田相比,Bt棉田棉铃虫、玉米螟、金刚钻、棉小造桥虫等鳞翅目害虫种群数量显著降低,而盲蝽象、红蜘蛛、棉蚜、烟粉虱等非靶标刺吸式害虫种群数量显著增加;蜘蛛、瓢虫等捕食性天敌种群数量显著增加,而棉铃虫的寄生性天敌种群数量则显著下降。

The research aimed to screen out the medicament with good ovicidal activity to Aleurodicus disperses ovum.

筛选对螺旋粉虱卵具有良好杀卵活性的药剂。

Infestation of the large intestine with whipworms of the genus Trichuris.

传播洛矶山斑疹热和拖拉伦斯菌病的普通扁虱。

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But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊!不用提了。提到肉,真是糟透了。

Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.

Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。