病菌会侵入机体。
由于癌细胞本身不是外部侵入的病菌，而是人体自身的问题细胞，因此免疫系统很难对癌细胞识别和清除。
The immune system has a hard time recognizing and fighting cancer because the enemy is not an invading germ but our own cells gone rogue.
今天，有50多万人受到雅司病感染。 雅司病是由螺杆菌引起，病菌通过患者皮肤上的伤口侵入，导致肿块，溃破后形成溃疡，遍布患者身体。
Today, more than 500 000 are afflicted by yaws, which is caused by a spiral bacteria that penetrates through a cut in the skin resulting in bumps that burst, ulcerate and spread over the body.
它用纤维质织成防止细菌和病毒侵入，还包含锌和铜用来破坏细胞壁杀死病菌，防止佩戴者吸入或传播病菌。
Its interwoven cellulose fibers bind to bacteria and viruses, and zinc and copper within it kill them by destroying their cell walls, preventing you from inhaling germs or spreading your own around.
如果病菌侵入它们的根或者伤害了它们的树皮，一棵树在死亡之前还可以挺25年。
A tree can take 25 years to die if disease gets into the roots or wounds in the bark.
病人无力摆脱已经侵入他免疫系统的病菌。
The patient had no strength to throw off the germs which had invaded his immune system.
这种病菌可侵入通过皮肤产生坏死性筋膜炎，使他们受欢迎的名字俗称食肉菌。
The bacteria can invade through the skin to produce necrotizing fasciitis, giving them the popular name of flesh-eating bacteria.
当你感染时，尤其是严重感染时，白血球的数量会猛增，这是你的身体对病菌侵入的正常反应。
When you have an infection, especially a serious one, the number of white blood cells soars. This is normal response of your body to an invasion of germs.
人工接种病菌可自伤口侵入。
In artificial inoculation the fungus can be made invaded through wounds.
侵染与传播。灰霉病菌侵染番茄果实从残留的花瓣处侵染的最多，占81%以上，其次为从柱头侵入。
It was found that invasion of the pathogen on tomato fruits was most popular through petal residue (81%), and also through chapiter.
研究褐飞虱通过水稻介导对稻瘟病菌侵入的作用中发现：5个水稻品种经过褐飞虱取食处理后的稻瘟病病斑数均比对照组显著降低。
The experiments of rice-mediated effects of BPH on rice blast fungus showed that there were less blast lesions in 5 rice varieties treated with BPH compared with their control groups.
了解稻瘟病菌附着胞阶段基因表达的状况对于弄清附着胞的形成、发育和侵入机制具有重要意义。
It is significant to find out the stage of gene expression of appressorium for us to understand the process of appressorium formation, development and penetration in the rice blast fungus.
通过扫描电镜观察人工花器接种后的花柱、花丝等部位，可看到病菌萌发侵入的情况。
The germination and invasion of conidium could be observed on the surface of the flowers by SEM. The germinating conidium and invading hyphae could also be observed in…
通过扫描电镜观察人工花器接种后的花柱、花丝等部位，可看到病菌萌发侵入的情况。
The germination and invasion of conidium could be observed on the surface of the flowers by SEM. The germinating conidium and invading hyphae could also be observed in…
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