查询词典 fern

This paper gives an overview of the different and conserved features of fern spores and spermatophyte pollen germination.

本文综述了蕨类植物孢子和种子植物花粉萌发过程的差异和保守性特征。

Fern spores and spermatophyte pollen have major roles in plant sex reproduction.

蕨类植物孢子与种子植物花粉在有性生殖过程中都具有重要的作用。

Her spiderweb tells of her feelings for a little pig named Wilbur, as well as the feeling of a little girl named Fern...who loves Wilbur, too.

这个叫夏洛特的蜘蛛说出了她对一头叫威尔伯的小猪的感觉，也说出了那个叫芬的小女孩对威尔伯的感觉--她也爱威尔伯。

A support for a fern sporangium or moss capsule.A rolling stone gathers no moss .

滚动的石头不生青苔(经常漂泊不定的人难有钱财或成就)。

A plant, such as a tropical orchid or a staghorn fern, that grows on another plant upon which it depends for mechanical support but not for nutrients.

附生植物一种生长于另一植物之上的植物，如热带兰或石松，依靠另一植物支持生长而不以其获得养料

With beautifully cut fronds the Fern pattern has the widest range of stemware, barware and gift items in the Collection.

与美丽的蕨类植物叶片切格局的酒具，酒具和礼品，收藏范围最广。

Hardy palmately branched North American fern with divergent recurved branches borne on lustrous dark reddish stipes .

长有强壮掌状枝叶和不同光亮的黑红色递归枝叶的北美洲蕨类植物。

Small North American evergreen fern whose stipes and lower frond surfaces are densely wooly.

叶柄和复叶下侧长有浓密茸毛的小型常绿北美蕨类。

Small North American evergreen fern whose stipes and lower ''.

叶柄和复叶下侧长有浓密茸毛的小型常绿北美蕨类。

Asiatic tree fern having dense matted hairs sometimes used as a styptic .

亚洲一种树冠茂密的树蕨，有时用于。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。