perennial的例句大全

According to law of community succession, using perennial herbs and shrubs that later successional species displace ragweeds is an ecological control method of weeds.

用演替中后期出现的有经济价值的多年生草本和灌木取代豚草种群，是一种生态防除豚草的有效方法。

Perennial subshrub of the Canary Islands having usually pale yellow daisylike flowers; often included in genus chrysanthemum.

加那利群岛的一种多年生亚灌木，具有浅黄色类似雏菊的花；常归入菊属。

Low-growing much-branched perennial of Canary Islands having orange-red to scarlet or purple flowers; naturalized in United States.

加那利群岛的一种矮生、多分枝的多年生植物，有桔红色、鲜红色或紫色的花；在美国已归化。

Small genus of erect annual or perennial herbs native to Madagascar; widely naturalized in the tropics; formerly included in genus Vinca.

土产于马达加斯加岛的直的一年或多年生的小的属；广泛地移植在热带地区；以前分在长春蔓花。

Perennial Cold Dews, the rainfall in southern China has increasingly reduced.

常年寒露期间，华南雨量亦日趋减少。

A perennial plant, such as the English daisy , cultivated as a biennial.

所有一年生及二年生植物都是结果一次而后死去.

Perennial of Portugal similar to the oxeye daisy.

葡萄牙的一种类似于牛眼雏菊的多年生植物。

When the accumulated load kept unbalance, for perennial-operation PRW the pumping temperature could increase or reduce much annually, which even made PRW not work.

当累积负荷不平衡时，长期运行抽灌同井的抽水温度会出现明显地年度升高或降低，严重时使源汇井失效。

This causes the symptoms of hay fever or perennial rhinitis to appear.

这就意味着干草热或者慢性鼻炎发作了.

Some people find that complementary therapies can help their hay fever or perennial rhinitis symptoms.

一些患者发现补充性的疗法有助于改善他们的干草热和鼻炎症状.

His brown velvet jacket had become perennial.

他那件咖啡色丝绒上装仿佛已经跟他结了不解之缘.

Perennial plants retire into a rest period when the temperature is below 43.

当温度降至43度以下时常绿植物即进出休眠期.

Secretary and I have large domestic electrical supply depot forming perennial relations!

我司已与国内大型电动车厂形成常年供应关系!

This thesis, focusing on domination and resistance yetattempt at analyzing this novel of perennial popularity.

本篇论文意在剖析小说中的宰制与反抗,力求承先启后.

Perennial marsh plant having swordlike leaves and aromatic roots.

生长于沼泽地带的一种多年生植物，具有剑状的叶子和带有香味的根。

Herbs perennial, caulescent, 5-10 cm tall, puberulous throughout, rarely sparsely puberulous or glabrous.

多年生草本，具茎，5-10厘米高，全部的被微柔毛，很少疏生微柔毛或无毛。

Any of several perennial North American herbs of the genus Chelone, especially C.glabra, having a white or pink bilabiate corolla with a bearded lower lip.

龟头花几种产于北美洲的龟花属的多年生草木植物的一种，尤指龟头花，花冠呈白色或粉红色，下部呈披针形。

Perennial of the eastern United States having early solitary yellow flowers followed by late petalless flowers; so-called because ice crystals form on it during first frosts.

美国东部的多年生植物，先开单生的黄色花、继而是无瓣的花；在第一次霜冻时有冰晶结在花上。

This perennial pest was top of her list of people pollution.

持续的虫害排在她的人类污染清单的首要位置.

It also , notwithstanding perennial complaints of vote-buying , seemed largely fair.

尽管总是存在对贿选的抱怨, 但总体上说,这次选举是公正的.