根

The crown gall disease is a bacterial disease induced by Agrobacterium tumefaciens.

根癌病是由根癌农杆菌引起的细菌性病害。

Crown gall A disease of plants caused by the soil-dorne bacterium Agrobacterium trmefasciens.

冠瘿；根癌：由土壤中的根癌农杆菌所引起的植物疾病。

Objective: To evaluate the effect of restoration of residual crown and residual root with post and core, and porcelain-fused-to-metal crown.

目的 观察有临床保留价值的残冠残根经根管治疗后行桩核固位，金属烤瓷冠修复的疗效分析。

METHODS: Severely-decayed tooth used for abutment of removable denture were made routinely root canal therapy and repaired with post and core crown.

将选作基牙的残冠残根常规根管治疗后，桩核冠修复，缺失牙再行可摘义齿修复。

Symptoms of Crown and Root Rot of Alfalfa.

苜蓿根和根颈腐烂病的症状。

Identification of Pathogens of Crown and Root Rot of Alfalfa .

苜蓿根和根颈腐烂病的病原研究。

Resistance to crown and root rot in alfalfa.

过氧化物酶活性与种质的根和根颈腐烂 5。

Alfalfa ; Crown and root rot ; Fusarium spp ; Pathogenicity ; Resistance

苜蓿；根和根颈腐烂病；镰刀菌；致病性；抗病性

In order to do these, we made three cruciform steel reinforced concrete special-shaped short columns and one ordinary reinforced concrete short column, and subjected them to eccentric load.

对3根含钢率不同的十字形截面钢骨混凝土异形短柱和1根无钢骨的十字形截面普通混凝土异形柱进行单向偏压试验。

The method that simple cubic equation was changed from general to standard was introduced and the distribution of standardized real root was illustrated, which solved the problem of the distribution of any real root for simple cubic equation.

摘要介绍了一元三次方程一般式化为标准式的方法，结合图形给出了标准式的实数根的分布情况，从而解决了任意一元三次方程的实数根的分布的问题。

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。