查询词典 extraneous root

Conventional root canal materials do not have enough dentinal adhesion and can not achieve the ideal sealing properties. Our research team has developed the polyurethane root canal obturation system containing ZnO/TPU cone and dual cured urethane acrylate sealer.

中文摘要传统根管封填材主要以马胶锥体搭配各类传统封填剂，然而马胶锥体及各类传统封填剂之间黏著力不足，和牙本质之黏著亦不理想，因此无法达到根管密封的目的。

Fresh weight, dry weight, root activity, peroxides activity and catalase activity were measured. The results showed that FW, DW, root activity, POD activity and CAT activity of Vallisneria natans L and Elodea nuttallii were improved when ammonia concentrations were less than 50mgkg^(-1) and 500mgkg^(-1), respectively.

试验结果表明，氨氮起始质量分数＜50mgkg^(-1)和＜500mgkg^(-1)时可以分别促进苦草和伊乐藻鲜物质量、干物质量和根系活力的增加，大于此范围则会抑制苦草为Vallisneria natans L和伊乐藻Elodea nuttallii的生长。

Obtaining the root of the equation is the critical of improving the efficiency. Effective chord secant method was used to determine the root of the quation quickly.

解方程的根是提高截球效率的关键，本文采用高效的弦割法来快速计算方程的根。

Aiming at the problem of the odd point in the calculation of rotors torsional vibration characteristics by using the improved Riccati method, this paper presents a new viewpoint about how to confirm and remove the lost root and the added root of equation.

本文针对采用改进型Riccati方法计算轴系扭振特性中所出现的奇点问题，提出还需检测判断剩余量与振型，从而进一步确定和排除方程"漏根"和"增根"的方法。

In this paper, a new method used to deal with the motion ability is studied deeply based on Routh-Hurwitz Criterion. The advantage of this kind of analysis method consists in the fact that after establishing the equation in differential calculus for the motion system, there is no need to know a root of the equation, if you know the root signs, you can judge the zero solution stability of the system.

本文利用劳斯－赫尔维茨判据(Routh-Hurwitz Criterion)对机械系统中离心转速调节器的运动德定性进行了分析，这种分析方法的优点就在于：建立系统运动微分方程的特征方程后，不必求解特征方程的根，只需知道根的符号就可判断系统的零解稳定性。

Analyse the root of equation, when the refractive index of film is less or greater than the refractive index of substrate; and draw up the graph of the equation root, gain the condition of single extreme or double extreme.

分别从薄膜小于衬底折射率和薄膜大于衬底折射率出发，分析了这两种类型薄膜的迭代求解情况，并描绘出了相应的图线，得到了出现单极值和双极值的条件。

Often, when the rider is having difficulty getting his heels down, the root cause is not really in the foot of the rider; as is often the case in equitation problems, the root cause lies somewhere else.

通常，当骑手放下脚跟有困难的时候，根本原因不在脚上；而是在其他地方，例如经常是由于平衡的问题。

The word 'radical' shares the etymological root to the word 'radish,' which means to get to the root of the problem.

这个词'激进'的股份词源根到Word '萝卜，'这意味着去问题的根源。

The quantitative modeling of root water exaction is difficult in research on soil-root hydraulic dynamics.

根系吸水的定量模拟是土－根系统水分动力学研究的难点之一。

When the time is fixed,the higher concentration of La3,the larger the ratio of electrolyte exosmosis,the severer destroy to root membrance. The rule of P and K+ in root exudation changed is similar to the ratio of electrolyte exosmosis.

同时根系分泌物中K~+和P含量的变化与电解质外渗率的变化规律相似，相关性分析表明其相关系数分别为0.963和0.915分别达到了极显著水平。

I can not negligent, he should do what?

我不能不在意了，他要做什么呢？

It is very dangerous to swim in the river alone.

一个人到河里游泳是很危险的。