主要果树病毒
Main fruit tree viruses
以上为机器翻译结果，长、整句建议使用 人工翻译 。
病毒病是果树主要病害之一。
Virus disease is one of the main diseases in fruit tree.
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基于PCR技术的检测方法是目前果树病毒检测的主要方法，许多果树病毒的PCR检测体系已经建立。
At present, the detection methods based on PCR are the main methods for fruit tree viruses, and many fruit tree viruses have been detected by PCR.
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