查询词典 perennial

Rubber tree is the perennial cross-pollination tree, and the efficiency of selection and breeding is restricted by its long breeding cycle.

由于橡胶树是多年生异花授粉乔木，育种周期长，选育种效率受到很大的限制。

Semi-aquatic Eurasian perennial crowfoot with spear-shaped leaves; naturalized in New Zealand.

欧亚的一种多年生、半水生植物，长有矛状的叶；被引种于新西兰。

Annuals, if perennial then uppermost leaves filiform to narrowly linear; sepals not cucullate; flowers ebracteate.

一年生草本，如果多年生植物那时最上叶丝状到狭线形；萼片不兜状；花无苞片。

It has been a perennial curse of man.

它将是人们永久的痛苦。

Herbs perennial. Stem erect or decumbent at base, branched, glabrous or pubescent.

多年生草本茎直立或外倾在基部，分枝，无毛或被短柔毛。

Herbs perennial. Stem slender, creeping or decumbent, rooting at the nodes.

多年生草本茎纤细，匍匐或外倾，节上生根。

Subshrubs, creeping or decumbent, or perennial herbs.

亚灌木，匍匐或者外倾，或者多年生草本。

A perennial plant native to Europe and naturalized in marshes of eastern North America, having showy pink flowers and a mucilaginous root occasionally used as a demulcent and in confectionery.

药用蜀葵一种多年生的植物，原产生于欧洲，已适应在北美洲东部的沼泽地区生长，具有艳丽的粉色花朵，其带有粘液性的根常被用作缓和性药或用于制作糖果

They are at once prototypes in the modern city in China as well as perennial prototypes: the misfit, the dilettante, and the underdog.

一个早晨我们的姨妈在公园遇到了潘知常，这是一个神秘的男人，姨妈倾倒於他，开始了与他的恋爱。

Perennial grasses of temperate and cool regions: wheatgrass; dog grass.

一个温凉地区产的多年生禾本属；芽草之类；欧翦股颖。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。