查询词典 laser printer

If the content of SiH〓 kept constant, the laser energy value of threshold that decomposed SiH〓 increased linearly at first, but when the gas flux exceeded 100ml/min, the laser energy value of threshold increased slowly because the coaxial Ar could not"suppress"the reaction flame which leaded to radial dilation of reaction gases and increasing the effective absorption to laser energy.

在反应气体中SiH〓含量不变的情况下，随着反应气体流量的逐渐增加，可以引发硅烷分解的激光能量阈值一开始成线性增加，当流量大于100ml/min以后，由于同轴Ar不能有效的&压住&反应焰，导致反应气体的径向扩张，增加了对激光能量的有效吸收面积，因此激光能量阈值的增加减缓。

Q-switched laser pulses can remove most tattoos effectively, with a low risk of scarring. Cosmetic tattoos, especially those with flesh-colored, red, tan or white inks, should be approached with caution when attempting removal by high-energy short-pulse laser, because of the possibility of laser-induced irreversible darkening.

Q开关雷射可以有效治疗刺青，而且结癖的危险性很低，化妆性刺青特别是肤色、红色、白色，在用高能量短脉冲雷射处理时需特别小心，因为会造成镇可逆的颜色变黑。

The results show that laser-arc welding can achieve full penetration by single-path butt jointing through appropriate parameters; Y shape groove with 8 mm truncated edge can enhance the penetration ability of laser-arc hybrid welding. Low welding speed is good for penetration, however the limitation still exists for hick plates joint. Gap is significant factor of penetration when work pieces is large thickness. The hardness of thick plates joint shows that there is big difference in mold of vertical thermal cycle using laser-arc hybrid welding.

结果表明：通过激光功率等焊接规范匹配，激光-电弧复合焊接能实现20 mm厚板的全熔透单道对接；钝边为8 mm的Y形坡口有助于提高厚板激光-电弧复合焊缝熔透能力；降低焊接速度有利于提高熔深能力；工件厚度较大时，装配间隙对焊缝熔深能力的影响较为显著；接头硬度表明厚板激光复合焊焊缝纵向热循环模式存在较大差异。

At high powers the nonlinear part of the index of refraction becomes important and causes a higher index of refraction in the center of the laser beam where the laser is brighter than at the edges causing a feedback that focuses the laser even more.

在高权力，非线性部分的折射率变得很重要的原因和较高的折射率为中心的激光束，在激光亮度比是在边缘，造成了反馈，重点激光甚至更多。

To decrease or eliminate the laser beam drift is the key to the high accurate laser measurement,especially the laser alignment technique.

寻求减少或消除激光光线漂移对测量影响的方法与技术，是高精度激光测量，特别是激光准直测量获得成功的关键。

Laser beam micro process ; 355nm UV DPSS Laser ; Telecentric Scan Lenes ; Micro hole array ; Laser drilling probe card guide sheet.

激光精细加工； 355nm紫外固体激光；远心扫描物镜；微孔列阵

Rotating laser ; laser levellers ; laser for autocontrol.

激光扫平仪；激光平地机；激光自动控制

Laser-based metrology and grating-based metrology are two main ultra-precision tools of dimension measurement. However, very few research work has been done on grating-based nanometrology compared with laser-based nanometrology till now because many people, including some grating researchers and specialists, hold the idea that the accuracy of grating-based measurement is lower than the laser's and can only reach micrometre or sub-micrometre level. They consider that it is unfeasible to get nanometer-scale accuracy using grating-based sensors.

激光技术和光栅技术是毫米级以上量程的精密几何量测量的两种最主要手段，目前，用激光进行纳米测量的研究已经很多，但光栅纳米测量技术的研究却很少；很多人，包括很多光栅研究者和测量专家，都认为，光栅测量的精度不如激光，其精度还只是停留在微米量级上，用光栅来进行更高精度的测量以至纳米测量是难以实现的。

Bending angle about material augments along with laser power and laser light spot diameter augment, but bending angle about material minishes along with laser scan rate and material hardness augment.

随着激光功率和激光光斑直径的增加板材弯曲角度增大，但随着激光扫描速度和板材厚度的增加弯曲角度减小。

Based on Stuart et al.'s electron density evolution equation, the electron density evolution process in fused silica film irradiated by short-pulse laser for τ∈[0.015] ps were studied by means of numerical method. The effects of initial electron density N and laser pulse width τ on laser threshold intensity I and damage threshold fluence. F were analyzed respectively.

基于STUART等人的电子密度演化方程，运用数值模拟方法，研究了脉宽为τ∈[0.01， 5]ps范围内单脉冲激光作用下熔融石英薄膜中电子密度演化过程；讨论了初始电子密度、激光脉冲宽度对阈值功率密度和阈值能量的影响；分析了初始电子密度、激光脉冲宽度对多光子离化及雪崩离化的影响。

The system can be widely used in belt weighing and batching process control,etc.

介绍了基于智能模糊控制的嵌入式配料系统的设计方法，对模糊PID控制过程和系统调零作了重点的讨论，同时给出了PID控制的程序流程图和系统定长调零子程序。

"I dunno," she answered,"but if you show me aroun', I'll recognize it from the lighthouse just outside the porthole."

"我不知道，"她回答说，"如果你能带我转转，我能认出来的，因为灯塔就在舷窗外。"