查询词典 root-mean-square

Hairy roots were induced from tobacco leaves with Agrobacterium rhizogenes LBA1334 harboring agropin type PRil855 and binary vector PIG121HM carrying a kanamycin resistant gene nptll and GUS gene and the good hairy root clones were selected. The root with many root hairs and branches grew vigorously toward all the direction on MS medium without plant hormone and on kanamyain containing medium (km:30mg/L). The structure of the hairy root tip is different from that of ordinary root. Witch was not typical root cap maybe the main cause of losing the geotropism of hairy root. Plantlet regenerated from hairy root when cultured on Ms medium without plant hormone. The nicotine content of the hairy root was little higher than that in the natural roots.

本研究通过发根农杆菌工程菌LBA1334(含有野生型pRi1855质粒和pIG121HM双元载体质粒，编码NPTⅡ基因和GUS基因)转化烟草沙姆逊，获得了具有卡那霉素抗性烟草发状根，并筛选出良好的单克隆株系，该发状根具有典型的发状根特性(多根毛、多分支、在无激素培养基上快速生长)，通过根尖压片分析，烟草发状根不具备典型的根冠；发状根中烟碱含量1.61％稍高于与天然栽培品种母体根的含量(1.5％左右)，发状根向培养液中释放烟碱，释放量最多时占总烟碱量的81.1％；在无激素的培养基上获得了再生植株。

Root-derived organic carbon is composed of three compartments: root detritus, root eaudates and root symbionts, which represents a large important and potential C sink in forest ecosystems, The known responses of root derived organic carbon and heterotrophic microbes to elevated CO2 were reviewed. Overall, increases in root biomass, productivity, and exudation indicate an augmentation of C inputs into the soil via roots, although changes in root lifespan are still unclear and may modify this flux positively or negatively, Altogether, changes in root chemistry and morphology that may augment soil C storage under elevated CO2 include decreased N concentration and wider root diameter, Alternately, a shift in rooting depth upwards in the soil profile may increase average turnover rates of root detritus. Effects of CO2 concentration on C qualities of root exudates and root symbionts are the least understood components discussed here, Changes of soil heterotropic microbial activity and community under elevated CO2 still remained large uncertainties.

林木根源有机C包括根东通过根枯落物、根系分泌物和根共生菌周转3条途径向土壤输入的有机C，它是森林生态系统中一个重要的、潜在的C汇，综述了根源有机C与其微生物对CO2浓度升高的响应，虽然对根系寿命的变化尚不清楚，但CO2浓度升高将导致根系生物量、生产量、死亡量和分泌物的增加；同时，CO2升高亦促使根共生菌生物量的增加而增加了共生菌的C归还潜力，表明CO2升高使根源有机C的输入增加了，CO2农度升高情况下，根系化学性质和形态特征的这些变化均有利于增加土壤C的吸存；而根分布深度的降低则对土壤C吸存不利；CO2浓度升高对根分泌物和根共生菌质量的影响研究则极少，CO2浓度升高下土壤微生物活性和群落组成的变化存在较大的不确定性，目前CO2浓度升高下林木根源有机C对森林长期C吸存的贡献仍很不清楚。

It is reported that AR has been localized to the base layer of the sebaceous gland and the outer root sheath keratinocytes of the hair follicle in human skin.

据文献报道，在人的皮脂腺(sebaceous gland，SG)的基底层和毛囊外根鞘(outer root sheath， ORS)中均有雄激素受体的表达。

AIM: To analyze the apoptosis and proliferation of HERS (Hertwig's epithelial root sheath) and to evaluate the roles of HERS cells in the development of cementum.

目的：观察牙根发育中上皮根鞘细胞(Hertwig's epithelial root sheath， HERS)断裂后结局和增殖凋亡相关基因的表达，探讨上皮根鞘在牙根发育特别是牙骨质形成中的可能作用。

No. Root beer is a type of soft drink.

不是。 Root beer 是一种不含酒精的饮料。

Mary: No. Root beer is a type of soft drink.

不是。Root beer是一种不含酒精的饮料。

Root beer is a brand name.

Root beer是一种商标名。

Rusted Root has been so popular in the blog world, there are 765 FO's in Ravelry alone. It has a simple construction and knits up fast. It is worked from top down in circular fashion. The increases are done along the raglan sleeve lines. The leaf lace panel just keeps it interesting amid the boring stockinette stitches. The only sewing required is at the underarm. This is a great project for a lazy bum like me or for someone who wants to try knitting from top down in circulars.

这件Rusted Root在美国网路上很多人都织过了，光Ravelry里面就有765个成品，也难怪它受欢迎，这件织法简单又快，实穿性高，从领口往下织，延著拉克兰袖线加针，前片的叶子蕾丝是设计重点之一，让人不至於因为平面编而觉得无聊，整件衣服采直筒轮编的方法，只有腋下&可能&需要缝合，超适合像我这种懒人或想尝试从上往下织的新手的啦！

Face tonic with pure essential oils of lavender*, geranium, rosemary, ylang-ylang, verbena, mint, ratania root, pure spring water.

含有薰衣草精油，天竺葵精油，迷迭香精油，依兰精油，马鞭草精油，薄荷精油，ratania root精油，纯泉水。

To check the status of network card, run "errpt -a | more", or run diag as root.

检查的地位，网路卡，执行& errpt -一|更多&，或者运行诊断，以root的身份。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。