Ld的例句大全

The results were as follows: ( 1) In mice the acute and subacute LD_ ( 50) after intraperitoneal injection of tartar emetic were found to be 38 and 35 mg/ kg/ day respectively.

结果如下：（一）小白鼠腹腔注射吐酒石急性及亚急性LD（50）分别为38及35毫克/千克/天。

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Therefore, it is necessary to design one digital drive power for LD, including constant value unit and monitoring system.

因此，需要为其设计一套数字化驱动电源，包括恒值单元和监控系统。

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Results: The mouse acute toxicity test showed LD_ 50> 10 000 mg/ kg, and the acute toxicity level was actual non-toxicity.

结果：小鼠急性毒性LD50>10000mg/kg，属实际无毒级；

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Control and effect of technological operation for smelting heavy rail steel with LD

转炉冶炼重轨钢技术操作控制及效果

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The temperature control system takes the LD environment temperature ( room temperature) as the fussy base point, and divides the temperature control interval ( 10 ℃~ 40 ℃) into 6 fuzzy intervals.

本温度控制系统以LD环境温度（室温）为模糊基点，把温度控制区间划分为6个模糊区间。

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The results show that the SQW LD has good temperature property and wide modulation bandwidth.

结果表明它具有较好的温度特性和较大调制带宽。

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Also, the wavelength of LD output light depends on the temperature stability.

同时，输出波长依赖于温度的稳定。

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The LD module consists of a DC-PBH laser diode, a pin photodiode for monitoring the laser power, a thermoelectric cooler, and a thermis-ter.

组件包括LD芯片，LD背光监测pin光电二极管，半导体制冷器和一个热敏电阻。

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The difference between ideal diffraction pattern and that of actual measurement is considered and the actual diffraction pattern is studied on four aspects, such as white noise, characteristic of Gauss beam of LD,, spatial position and disturbance of thin cylinder and focal spot.

针对细圆柱体理想衍射花样和实测衍射花样的差异，从白噪声、光源的高斯特性、细圆柱体空间位置及外界扰动和焦点光斑等四个方面研究了实测衍射花样。

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Study of High Power LD Pump Nd: Glass Thin Disk Laser Amplifier

高功率LD泵浦Nd：glass薄片激光放大器的研究

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The results showed: three does of LD laser affected the filaments morphology, the length of filament and thread pitch and helix numbers were variety compare to initial strain.

结果表明：三个辐照时间都对藻丝形态产生影响，使藻丝长、螺旋数、螺旋长发生变化；

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The system is mainly used for test the threshold current, differential efficiency, V-I characteristic and P-I characteristic of LD module.

该系统主要面向组装后的激光二极管组件，对其进行电流阈值（Ith）、光电特性（P-I）、电抗特性（V-I）等主要特性的测试。

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Therefore, based on the consideration of both photocurrent increase factor due to transient ionization effects and threshold current density decrease factor due to displacement effects, we obtain an integrated LD optical response model of radiation effect.

因此，在综合考虑了瞬态电离效应的光电流增加因素和位移效应的阈值电流密度衰减因素的基础上，获得了LD辐射效应综合光学响应模型。

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The InGaAs/ GaAs strained quantum well lasers are able to work with extremely low threshold current density, high characteristic temperature and high COD limit, which make Ld lasers achieve higher output power and longer Ufe.

InGaAs/GaAs应变量子阱激光器具有级低的阈值电流密度、较高的特性温度和较高的光学灾变损伤阈值，这使得激光器具有更高的输出功率和更长的寿命。

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Through the analysis of the loss and threshold characteristics of a laser diode ( LD), the threshold current density of LD with external feedback is calculated, according to the theory of multi-beam interference and the definition of equivalent reflection factor.

通过对半导体激光器（LD）的损耗和阈值电流特性的分析，引入等效反射系数的概念，根据多光束干涉的原理，导出了在外腔反馈作用下LD的阈值电流公式。

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Through the micro biosensor, the dynamic change of dopamine in the striatum due to lead intoxication was studied, and the 1/ 2 LD 50 of PB and time effect curve of dopamine in the rat due to 1/ 2 LD 50 PB intoxication was obtained.

应用该传感器观察了铅染毒后活体大鼠脑纹状体内神经递质多巴胺的动态变化，首次得到了1/2LD50铅经腹腔染毒后活体大鼠神经递质多巴胺的时间效应动态变化曲线。

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An Optimized Electric Spark Forming Technology for the Use of LD Steel

电火花成型加工LD钢工艺优化方法

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Alternatively, advanced graphical capabilities in the browser or in complimentary technologies, such as virtual worlds can provide improved metaphors for real-w or ld objects and qualities.

另外，浏览器（或虚拟世界之类的其他技术）中的高级图形功能可以更好地模拟现实物体和特征。

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Portable Infrared thermal detector has inside LD red introductive light and can make a sound when aiming at an object. The minimum measured diameter is 2.5 mm at the distance of about 25 mm.

便携式红外辐射监测仪内置LD红光指示和对准音提示，在距离红外透镜25mm处最小物面孔径为2.5mm。

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Thermal effect study on LD end pumped nd ∶ yag laser

LD端面泵浦Nd∶YAG激光器热效应研究

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