Pollen sac A chamber in which the pollen is formed in the angiosperms and conifers.

Turpentine Any resinous exudate or extract from conifers , especially pines oil ( or spirits ) of turpentine.

松脂任何含树脂的分泌物,或是 球果 植物, 尤其是松树的渗出物.

Many modern genera of conifers arose in the Tertiary, but other gymnosperms declined.

许多现代的松属植物是在第三纪产生的, 然而其他的裸子植物开始衰落.

On that piece of land I also recommend conifers or maybe cedars.

那块地嘛,我还建议你种引起针叶树,或许是雪松.

The air freshened and shared the flavor of conifers as we came into the mountains.

进入大山后,清新的空气中洋溢着针叶树的芳香.

This region contains areas which are prinarily covered with either high density conifers or meadow hardwoods.

该地区,主要的植被覆盖是高度的针叶树类或草地阔叶树类.

A variety of conifers and hardwoods makes up the bulk of the vegetation.

大部分植被由各种针叶树类和阔叶树类构成.

It has been known that the self-sterility of conifers results from embryo collapse after self-fertilization.

业已知道,针叶树自花不育是由于自花受精后胚凋萎.

Several other conifers produce small male catkins.

其它几种针叶树产生小雄花序.

Damage from salt spray affects many other conifers.

许多其他针叶树因药剂喷洒的的影响而受害.

The xylem of ferns and conifers contains only tracheids.

蕨类植物和针叶树的木质部仅含有管胞.

Sarvas discusses the nature of the " lethal load " in conifers.

萨维斯 讨论了针叶树的致死的基因性质.

Firs, spruces and pines are conifers.

冷杉 、 云杉和松树都是针叶树.

In order to achieve the most coning effect, we advise you to close your eyes.

为了达到最佳的演示效果, 我们建议您闭上眼睛.

It'suggests not to use shut-in coning control method to deal with water coning effect.

建议矿场上不要采用关井压锥的方法来克服底水锥进带来的不利影响.

Traditional coning compensation algorithm error greatly increased while angular velocity signal was algorithm input.

以角速率信号作为算法输入时,采用以往常用的圆锥补偿算法,算法误差明显增大.

Using the technique of water displacement and oil recovery to control bottom water coning.

介绍了该方法的原理,即通过调整油水界面上、下的产液速度来实现抑制底水锥进.

Bottom water coning development effect , causing earlier water breakthrough, rapid water cut increase and production decrease.

底水锥进常常使油井过早见水 、 含水上升迅速、产量递减加快.

As a prospect , a kind of new wind turbine generator based on coning rotor is discussed.

最后介绍一种新型锥形转子风力发电机组的设想.

The accuracy of classical coning algorithms monotonically decreased with the increment of coning frequency.

经典圆锥算法的精度具有随着圆锥运动频率降低而提高的单调特性.

Normal coning is less a treatment for infertility than a treatment for vanity.

正常的克隆不是为了治疗不孕,到是满足了虚荣.