maidenhair

A stepwise regression analysis was made using the maidenhair tree annual seed yield of 17 years ( 1962~ 1978) in Changxing County as dependent variable ( y) and 33 climatic factors of these years as independent variable ( x).

以浙江长兴县1962～1978年17a的银杏年产果量和各年度的33个气象因子进行逐步回归分析，结果表明有5个气象因子对产量的影响最为显著。

Adiantaceae ( maidenhair ferns ) A family of ferns ( Filicinophyta ) found throughout the world, especially in the moist American tropics.

铁线蕨 科:一科广泛分布的蕨类植物, 特别是在美洲潮湿的热带分布较多.

Green belts including pagoda trees and maidenhair trees are being planted alongside the gymnasium.

在该场馆的周围种植的宝塔树和铁线蕨构成了一条条绿化带。

For centuries, traditional Chinese physicians have used extracts from leaves of the maidenhair tree, Ginkgo biloba, to treat asthma, bronchitis, and brain disorders.

几个世纪以来，传统的中医师一直将铁线蕨和银杏叶等植物的提取物应用于治疗哮喘、支气管炎和大脑功能障碍等疾病。

pb stress on seedling growth after germination studies confirm the tolerance of plant roots on the ability of lead of four to iris, camellia impatiens, zinnia, and maidenhair, the strength of the order of iris camellia impatiens zinnia maidenhair. 5.

Pb胁迫对萌发后幼苗生长影响研究进一步证实植物根系对Pb的耐受能力较强的四种为马蔺、茶花凤仙、百日草和孔雀草，强弱顺序为马蔺茶花凤仙百日草孔雀草。

Delicate maidenhair fern with slender shining black leaf stalks; cosmopolitan.

长有纤细黑亮叶柄的一种铁线蕨；遍布全球。