trace-pollen

常见例句

There are great or remarkable differences in the number of trace pollen among sterile lines,different sowing times and different florenscences.
微粉數量在不同不育系之間、不同播期之間、不同開花時期之間存在顯著或極顯著差異。
Vigor and Hybridizing Ability of Trace Pollen of Temperature-sensitive CMS in Chinese Cabbage
溫度敏感大白菜胞質雄性不育系微量花粉活力研究
There is a high pollen count in the air.
空氣中有很高的花粉計數。
I can't trace that letter you sent me.
我找不到你寄給我的那封信。
He spoke without a trace of emotion.
他說話時毫不動感情。
Did the police find any trace of the murderer?
警方找到兇手的行蹤了嗎？