ponderosa

过去分词：

动词过去分词: pondered

更多词形：

名词: ponderer | 动词过去式: pondered | 动词过去分词: pondered | 动词现在分词: pondering | 动词第三人称单数: ponders |

单词例句：

In vitro formation of adventitious buds from embryos of pinus ponderosa

美国黄松成熟胚的离体培养与不定芽的形成

A tall timber tree (Pinus ponderosa) of western North America, having long, dark green needles grouped in fascicles of three.

美国黄松：产于北美洲西部的一种高大的木材树（西黄松松属），长有深绿色的长松针，每三根松针聚成一个簇生叶

The Propagation Technique of Heteroplastic Grafting of Pinus ponderosa

美国黄松异砧嫁接繁殖研究

Influences of recovery from clear-cut, climate variability, and thinning on the carbon balance of a young ponderosa pine plantation

明显气候变异的恢复与减弱对幼年黄松林碳平衡的影响

Callaham and Liddicoet found an elevational cline in ponderosa pine from Northern California.

卡拉汉和利狄柯特发现加利福尼亚北部产的黄松有一海拔渐变群。

A boat and water skier cruise by on one of several lakes located in South Dakota's Black Hills.The Black Hills get their name from the dark cloak of ponderosa pine trees that cover the landscape.

在位于南达科他州的黑山地区的湖泊中,一条船和滑水者正从水面驶过.黑山这个名字是来自于那片覆盖在群山上的黑色斗蓬般的黄松森林.

Forest production Larix, Pinus ponderosa.

林区产落叶松、黄松。

A Study on Height Growth Process of Pinus ponderosa

美国黄松个体高生长过程研究

Title： Photosynthesis,Transpiration and Growth Features of Pinus ponderosa,P.nigra var.austriaca and P.tabulaeformis

关键词：美国黄松;奥地利黑松;光合速率;蒸腾强度;生长过程