查询词典 threshold

When the excitation intensity exceeded a threshold,very sharp peaks emerged in the emission spectra from 650～750 nm.

当激励强度超过阈值时，在650～750 nm区域有很强的受激发光峰。这些受激发光峰的半高宽小于0.5 nm。

The TM random lasers have lower threshold and larger output intensity under the same pumping rate.

在相同的泵浦速率下，TM比TE具有更小的阈值和更大的输出强度。

The dependence of the output laser intensity and threshold on the temprerature, the effective optical length of the crystal and the reflectivity of the output coupler are discussed.

讨论了晶体温度，晶体的有效光学长度，以及输出镜的反射率等因素对激光输出强度和发光阈值的影响。

The threshold intensity is reduce as well as the width of OB region. In addition, the composite medium with dielectric loss is also discussed.

通过Laplace 方程找出外场作用下圆柱壳的响应电场，从而求出复合体系的有效非线性极化率以及在强场下的双稳特征，着重分析了

Accident tree analysis is applied to risk analysis and a mathematical model is established, including fire model, effective release rate model, heat intensity threshold and hazard area equation.

采用事件树分析法进行风险分析并建立了数学模型，包括火灾模型、有效释放率模型、热强度极限值、危险区域等式四部分。

Then for the cases when the pumping power is below and above the lasing threshold, the emission intensity, excitation mode and photo distribution are analyzed from theoretical and experimental level.

然后对随机激光泵浦过程中，阈值前后的发射光强、激发模式以及光子数分布，进行了理论及实验上的分析与探讨。

As a result, the crack propagation rates and threshold stress intensity factors for crack arrest in air and water were obtained, and revealed anisotropy.

结果表明，恒载荷下，压痕裂纹在空气和水中不断扩展， 120 h后趋于稳定，从而就可获得裂纹扩展速率和裂纹止裂的门槛应力强度因子KISCC，它们均显示各向异性。

In patients without mechanical response to vestibular tests, phasic eVOR was reduced to one-fifth of normal amplitude, doubled in duration, had reduced ability to vary with current intensity, and threshold was increased.

对前庭试验无机械反应的患者，时相性eVOR振幅减少至正常的五分之一，持续时间是原来的两倍，随电流强度变化的能力降低，阈值升高。

Were recorded; the threshold intensity, length of the refractory period and velocity of conduction were measured; the influence of injuries to the conduction was also examined.

分别记录蟾蜍坐骨神经干动作电位的波形，测量蟾蜍坐骨神经干的阈刺激强度、不应期和兴奋传导速度，考察损伤对传导的影响。

The establishment of industrial screening and comprehensive evaluation mechanism, the development of modern industrial system access directory, according to different industries, different projects, an appropriate increase in investment in the access threshold intensity.

建立产业筛选和综合评价机制，制定现代产业体系准入目录，按不同产业、不同项目，适当提高投资强度准入门槛。

The dissecting of samples in group2 were difficult. The root of pulmonary artery and ascending aorta failed to be unfolded because fibrous tissue was tough, right and left fibrous trigone were too firm to be solved by hand. Cardiac muscle fibers couldn't be stripped along myofibrillar trajectory since they were prone to break because of their friability.

组2的心脏解剖困难，表现为纤维组织坚韧，游离肺动脉非常困难；徒手无法松解左、右纤维三角，肺动脉和主动脉根部的游离非常困难；心肌纤维坚硬、质脆，解剖时容易断离成碎块，无法沿纤维走行方向剥离。

We have battled against the odds in a province that has become increasingly violent.

我们对在一个争夺日益激烈省的可能性。