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赫罗图上大多数恒星密集在由左上方(高温、强光度)至右下方(低温、弱光度)、沿稍微弯曲的对角线的狭窄带区内,形成一个明显的序列。又称主序。
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plant drought tolerance
plant dyeing
plant ecology
plant ecophysiology of temperature
planted forest
planted forest resources of China
planted plane tree
planted tree
plant electrical control system
plant embryology
plant epidermis
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planter with plastic sheeting
plant experimental embryology
plant exposure dose
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plant fibre
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plant freezing damage
plant freezing tolerance
plant gene diagnosis
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