The mesophyll consists of two layers of palisade parenchyma.叶肉是由两层栅栏薄壁组织组成.Aerenchyma is well developed in mesophyll.叶肉中通气组织发达,且均有不规则裂生性气腔.The larva eats the mesophyll tissues and makes the leaves yellow and deciduous.幼虫...
What are the principles of the identification of Procaine Hydrochloride.盐酸普鲁卡因的鉴别原理是什么?Objective To remedy lacrimal hypersecretion by procaine blocking lacrimal gland.目的利用普罗卡因封闭泪腺治疗泪液分泌过多症.That's the effect of the p...
The author tried to depict the splendor of the sunset.作家试图摹写落日的光彩.Although we still depict nostalgic snow scenes on Christmas cards, winters are now very much warmer.虽然我们仍在圣诞卡上描绘着具有怀旧气氛的雪景，但现在的冬天比过去暖和多了。I don't care...
The design principle and structure characteristics of long - column - type and cone - type desliming equipment are introduces respectively.介绍了所研制的长柱型脱泥设备和圆锥型脱泥设备的设计原则和结构特点.Application of laboratory tests in the course of...
In this economic climate new ideas were few and far between.在这种经济环境下，新想法极为罕见。Successful women politicians are few and far between.成功的女政治家凤毛麟角。People who work as hard as you are few and far between!像你这样努力工作的人真是太少了!...