tube nucleus的用法和樣例:
例句
- The tube nucleus disintegrates as the pollen tube penetrates the nucellus.
另外的粉管核會在花粉管穿過珠心時發生分裂。
- The two sperm nuclei and the tube nucleus are all derived from a single microspore nucleus by mitosis.
兩個精核和管核都是從同一個小孢子核有絲分裂產生的。
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