反射

After intravenous infusion of propofol, the dosage of propofol required to ablate the eyelid reflex were recorded and compared between three groups.

静脉泵注丙泊酚，比较三组之间大鼠眼睑反射消失时丙泊酚的用量及所需的时间。

The band radiance of MODIS were simulated, using the Normalized water-leaving radiances and remote sensing reflectance measured by above-water measurements.

辽东湾是典型的复杂二类水体，我们利用2002~2004年在辽东湾现场实测的叶绿素a数据（分光法、荧光法和HPLC法），以及水面之上法现场实测的离水辐射率和遥感反射率数据模拟的MODIS各相应波段值对MODIS海洋水色算法进行了评估。

Two separate continuous monitoring stations were set near the northern and southern coast of Hangzhou Bay separately,which is typically turbid area in China coastal waters.The above-water measurement method and the American ASD portable spectroscope were adopted to measure the water surface reflectance spectrum.

在我国典型高含沙海域——杭州湾的南北岸分别布设连续监测站位，采用水面之上光谱观测方法，利用美国ASD便携式地物光谱仪测量混浊水体的反射光谱，并且同步采集表层水样获取含沙量数据。

The tested and compared results show that the methods can be used in practice when the reflectance abridgement or spectral image compression is required.

可以看出，删节方法无论是对光谱反射比的删节还是对光谱图像的压缩，其结果都能很好的满足工业需求。

The direct selection, linear, and third order reflectance abridgement methods are discussed and tested.

为了将测量间隔较小的光谱反射比数据删节或者压缩成间隔较大的数据，给出了三种方法，即：直接选取法、线性删节法和三阶删节法，并对其特性进行了仿真验证。

However, operating of the high current, the output power, gain, and efficiency of gyro-TWT will be degraded where the absolute instability, gyrotron backward oscillation and reflective oscillation occur to cause mode competition. Stability issues comprise the key factors limiting the performance of the gyro-TWT.

对於高电流的影响，磁旋行波放大器将有可能引发绝对不稳定、磁旋返波振荡(gyrotron backward oscillation；gyro-BWO)及反射振荡，造成模式竞争而抑制原先操作模式的放大波，进而影响其输出功率、增益及效率。

Therefore, the multi-stage interaction structures with losses and severed structure were more stability for absolute instability and gyrotron backward oscillations. This study presents a nonlinear analysis of typical oscillations, including absolute instability, gyrotron backward oscillation and reflective oscillation. The multi-stage gyro-TWT seem to increase effectively the start-oscillation currents of the absolute instability, gyro-BWO, and reflection oscillation.

所以在本研究分析中，藉由了解磁旋行波放大器中的自发振荡物理原因及特性，将有助於高功率放大器的设计，并且引用非线性程式进行磁旋行波放大器稳定分析，并且采用兼具隔离管及散布式损耗结构的磁旋行波放大器，同时提升绝对不稳定、磁旋返波振荡及反射振荡的稳定性能有效提升磁旋行波放大器输出功率和频宽。

However, operating of the high current, the output power, gain, and efficiency of gyro-TWT will be degraded where the absolute instability, gyrotron backward oscillation and reflective oscillation occur to cause mode competition. Stability issues comprise the key factors limiting the performance of the gyro-TWT, therefore physical origins of spontaneous oscillations in the gyro-TWT are analyzed and characterized.

然而受限於操作高电流，磁旋行波放大器可能引发绝对不稳定性、磁旋返波振荡(gyrotron backward oscillation；gyro-BWO)及反射振荡，造成模式竞争而抑制原先操作模式的放大波，进而影响其输出功率、增益及效率。

The light propagation within an absorbing medium and the reflection and refraction at the interface of two absorbing media are studied.

本文研究吸收介质中光传播和吸收介质界面上的反射和折射。

The medium is absorbing, scattering, and the other boundary is diffusely reflecting.

介质考虑吸收及散射辐射，平板的一边突然曝露於散漫入射，另一边则为散漫反射。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。