He cites the outbreak in the early 1970s of yellow dwarf virus, which threatened to wipe out the world's barley crop.
他以上世纪70年代初黄矮病毒爆发为例，当时的爆发威胁到全球大麦作物的生死存亡。
Modern astronomers class the sun as a "Yellow Dwarf".
现代天文学家认为太阳属于黄矮星类。
Wheat yellow dwarf, one of the major diseases in wheat was caused by Barley yellow dwarf Virus (BYDV).
小麦黄矮病是由大麦黄矮病毒(BYDV)引起的小麦主要病害之一。
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