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Flowers usually bisexual, sometimes polygamous, actinomorphic, rarely zygomorphic, usually 5-merous.

花通常两性，有时杂性，辐射对称，很少左右对称，通常5数。

Inflorescence usually 3–11-flowered; scales on abaxial leaf surface usually saucer-shaped, with broad rim.

通常的花序3-11花；通常的叶背面鳞片茶托状，具宽的凸缘。

Inflorescences axillary, ramiflorous, cauliflorous, or terminal, simple or rarely compound, with flowers borne laterally either in pairs or sometimes singly, racemose, sometimes spicate, paniculate, or condensed into a head; bracts subtending flower pairs usually small, sometimes accrescent and woody; floral bracts usually minute or absent.

腋生的花序，枝花，茎生花，或者顶生，单和很少复合，苞片与花对生通常小，有时增大并且木质化；花的苞片通常小或者无。

At present, traditional means namely neutralization is usually used to treat these acids in order to meet production requirements, which means great waste of acid and alkali, As to high concentration of ammoniacal nitrogen, since there is no economic and feasible means yet, it is usually discharged directly without any treatment, which has great effects on the surrounding environment.

目前，对这部分酸传统的处理方法是通过加碱中和以达到工艺要求，酸碱浪费极大，而对于生产过程所排的高浓度氨氮，由于尚未有经济可行的处理方法，一般是未加任何处理就直接排放，对稀土冶炼厂周边环境的影响不容忽视。

Ovary inferior, 1-loculed; ovules 2(-6), pendulous, anatropous, usually only 1 developing; style 1, simple, usually free from distal part of calyx tube, subulate to filiform; stigma capitate or inconspicuous.

子房下位，1室；胚珠2(-6)，倒悬于子房室的顶端，通常只有1个胚珠发育；花柱1，不分枝，通常从萼筒远轴中长出，钻形到丝状；柱头头状或不明显。

Corolla 2-3 cm, lobes usually erose or fimbriate apically; leaves usually to 20 cm.

花冠2-3厘米，裂片通常或流苏状顶部；叶通常到20 厘米 22

Sepals eroded-denticulate to subentire, usually apiculate, broadly elliptic to broadly ovate; leaf apex usually apiculate-obtuse to rounded

萼片腐蚀具小齿到近全缘，通常，宽椭圆形到宽卵形；叶先端通常具细尖钝到圆形 28

The fEPSP response evoked in one pathway was small, usually 20–30% of the maximu, whereas a large response, usually 80–90% of the maximum, was evoked in the strong pathway. After recording of the baseline fEPSP evoked at 0.033 Hz, LTP of the weak pathway could be associatively induced by paired stimulation of the weak and strong pathways 100 times at 6 sec intervals, with stimulation of the weak pathway preceded 3–10 msec.

在记录以0.033Hz所引发基础的兴奋性突触后电位之后，在弱的路径上可以因配合弱与强的刺激路径而引发出相关性长期增益（每六秒一次共100次，弱的刺激路径在强的刺激路径之前 3-10 ms），然而当在两个路径之间的配合时间差大於10 ms时即无法形成相关性长期增益，此类型长期增益的引发是需要依赖活化NMDA接受器的，因为给予50 mM的D，L-AP5可以阻断相关性长期增益的引发（兴奋性突触后电位为原来的105±6﹪；n=6）。

Leaves borne on current year's branches, crowded, sessile, persistent on old branches after withering; spring leaves at base of current year's branches and similar or different from summer leaves; leaf blade linear, linear-needlelike, or linear subulate, usually very shallowly obdeltate to subcomplanate in cross section, apex usually pointed to awned.

叶生于当年分枝，密集，无梗，在老枝上宿存在之后蔑视；当年分枝的春天叶在基部和不同于夏天叶的相似的或；叶片线形，线形，钻形的或线形，浅非常通常在subcomplanate在横断面上，先端通常指向具芒。

Spikelets all alike, somewhat laterally compressed, with 1 to several fertile florets; rachilla usually disarticulating below each floret, occasionally strictly 3 florets with lower 2 staminate or barren and of different appearance from upper fertile floret, then disarticulating above glumes and florets falling together; glumes persistent, often equal to spikelet or at least longer than first floret, commonly membranous with broad, shining, hyaline margins; floret callus bearded; lemmas hyaline to leathery, 3- to several-veined ( Coleanthus 1-veined), apex entire or denticulate, awned from back, rarely awnless; awn usually geniculate with twisted column; palea hyaline, subequaling or much shorter than lemma.

全部一样的小穗，有点侧面压扁，具1到数个能育的小花；脱节的通常小穗轴在下面每小花，偶尔严格加雄蕊或者无意义的更低的2的3小花和上面肥沃小花的不同外表，然后脱节的上述颖片和小花结合起来；宿存的颖片，等于小穗或长于前小花，宽的膜质具，发亮，透明边缘的通常的至少的通常；公然反对的小花结茧；透明的外稃到革质，3-到数枚脉(Coleanthus 1脉)，先端全缘或具小齿，从背面，很少awnless那里具芒；用盘旋的柱子通常膝曲的芒；透明的内稃，近相等或者远短于外稃。

Aquatic or marsh-growing fern allies; known to have existed since the Cenozoic; sometimes included in Lycopodiales.

生活于水中或湿地的蕨类；从新生代生存至今；有时归于石松目之中。

The engine was uprated from a 90hp Franklin to a 125hp Lycoming.

改良过的引擎是从90hp到125hp莱康明富兰克林。