查询词典 root tip

Periodontal disease is one of the most common disease in oral cavity, which is the reason of defect of dentition second only than dental caries. It results in junctional epithelium turn root periodontal pocket emerge, tooth mobility, aversion and amotic. Among the total, the alveolar bone shrikes to root can not reversible.

牙周病是口腔常见病之一，是仅次于龋病导致牙列缺损的第二大原因，造成结合上皮根向迁移、牙周袋形成、牙齿松动、移位和脱落等病理改变，其中牙槽骨向根方的退缩是不可逆的。

At the early stage of stress (2 d and 5 d), the Pn, Tr, Ci and Gs of own-root plant were significantly decreased, while Ls was significantly increased, the inhibition of photosynthesis of own-root plant was mainly caused by stomatal factor, water use efficiency was significantly elevated, resulting from lower Pn.

在NaCl胁迫下，自根苗和嫁接苗叶片和根系中酶(SOD、POD、CAT和APX)活性和抗氧化剂含量发生明显变化，或被诱导上升，或被抑制下降，但嫁接苗各指标均显著高于自根苗，而丙二醛含量显著低于自根苗，表现出较强的抗氧化能力。

The biomass production of grafted seedlings, activities of antioxidant enzymes and contents of proline and soluble protein in leaves of grafted seedlings were significantly higher than those of own-root seedlings, while O2(superscript -) production rate, contents of H2O2 and MDA in leaves of grafted seedlings were significantly lower than those of own-root seedlings under Ca(NO3)2 stress.

结果表明，Ca(NO3)2胁迫明显抑制植株生长，显著提高植株抗氧化酶活性，显著增加植株O2生成速率以及H2O2、MDA、脯氨酸和可溶性蛋白含量，但胁迫后嫁接苗的生物量显著高于自根苗，抗氧化酶活性、脯氨酸和可溶性蛋白含量均显著高于自根苗，而O2生成速率、H2O2和MDA含量则显著低于自根苗。

At the late stage of stress (10 d), the chlorophyll degradation of own-root was accelerated, salt ion destroyed chlorophyll photosynthetic structure, the Pn, Tr and Gs of own-root plant were still significantly decreased, Ci was significantly increased, while Ls was significantly decreased, WUE was significantly decreased because the decreasing extent of Pn was more obvious than Tr, leading to a poor water use.

自根苗和嫁接苗叶片和根系中脯氨酸、可溶性糖、可溶性蛋白质含量在胁迫初期均会被诱导上升，随着胁迫时间的延长，有的持续上升，有的显著下降，但嫁接苗与自根苗相比，不论叶片还是根系中，各指标均显著高于自根苗，渗透调节能力相对较强。

Results Direct signs of brachial plexus pre-ganglionic injury included lack of nerve root,rupture of nerve root,and rupture of partial cercical rootlets.

结果臂丛神经节前损伤的直接征象包括神经根缺失、神经根断裂、神经根部分根丝断裂；间接征象包括创伤性脊膜囊肿、硬膜囊变形、脊髓表面部分裸露等。

We took a bundle of kava root (the root of a pepper plant. It will be made into a grey coloured drink called yaqona that people often drink) to present to the chief to ask for permission to anchor and walk around the village. We later found out the chief died 5 yeas ago.

卡华」的椒类植物的根部，当地人爱用「卡华」磨成粉加水渴，所以照风俗我们上岸时要带一扎来送给村里的长老，好让我们能在那里抛锚和到村子逛逛甚至使用村子的设施。

Histological examination of the root development in melon hypocotylcuttings revealed that phloem parenchyma cells in the hypocotyl cuttings startedto divide and initiated the adventitious root development after 48th hrs of aninduction pretreatment.

以甜瓜下胚轴为试材，建立了一套简便、快速的不定根离体诱导与调控体系，并观察了不定根分化与发育过程中细胞组织学的特点。

PURPOSE: To investigate the root and root canal anatomical features of maxillary first premolars in 422 teeth.

目的：了解上颌第一前磨牙的牙根和根管形态，为临床治疗提供解剖学依据。

In the pot experiment, the lead ion concn. in the dry soils was set as 0, 100, 500, 1000, 2000 and 3000 mg/kg, the content of Pb in aerial parts and root of M. sativa and B. juncea were detected and the total migration amount of Pb, root tolerance index and enrichment coefficient were calculated.

方法］采用盆栽试验，土壤中铅离子浓度为0、100、500、1000、2000、3000 mg/kg干土，测定紫花苜蓿、印度芥菜地上部和根部的铅含量，计算铅的迁移总量、根系耐性指数、富集系数。

Root canasl therapy ; Dental pulp cavity ; Root canal obturation

根管疗法；牙髓腔；根管充填

Tom: You are right, he worked hard all the time.

你是对的。他一直都是努力工作。

Take shortcomings,failures,and mockings of others as commonplace and a drive to complete oneself,hold your own opinion over the evalution and disscution divested from others,afterwards sink into the state of eliminate mistakes if any or encourge oneself being not being influenced by the sayinngs of others or having no ideas to do.

把缺点、失败及别人的耻笑等看成是一种常事，当成完善自己的动力，对别人的评价和议论自己心中有主见，做到&有则改之，无则加勉&，不为人言所左右或无所适从。