无脉

The energy spectra of hot electrons have been measured using the magnetic spectrometers, fitted with the LiF thermoluminescent dosimeter which were calibrated using Cs~(137)γ-ray sources, in the interaction of a 130 mJ, 60 fs, 800 nm, 1∶10~(-6), 7.0×10~(17) W·cm~(-2) P-polarized laser incidence on Cu foil target at an angle of 45° with respect to the target normal without any prepulse.

在激光能量130mJ，脉宽60fs，波长800nm，对比度1∶10-6，激光与靶法线成45°夹角， P偏振，靶面激光峰值功率密度约为7.0×1017W·cm-2，无预脉冲的条件下，采用电子谱仪与经γ标准源标定的LiF热释光探测器相配合，测量了飞秒激光薄膜靶相互作用中产生的超热电子能谱。

At first,the prin ciple of BLDCM is analyzed and the model is built;then a test is performed on a tining system of close loops of speed and current;torque ripple components are r educed by controlling switching andles of the PWM.

文中首先建立永磁无刷直流电机的数学模型，以此进行转速和电流双闭环调速系统控制；并通过调节 PWM发生器的开关频率来减少转矩脉动。

Fruit strongly flattened, not torulose, 2.5-3 mm wide; valve margin thickened, with prominent marginal veins; median filaments toothless; flowers white; seeds ovate

强烈扁平，不近念珠状的果，2.5-3毫米宽；裂爿边缘加厚，具突出的边缘的脉；中间的花丝无牙；花白色种子卵形 3 L。 rosularis 莲座鳞蕊芥

Leaves opposite, rarely alternate or whorled, simple, trifoliolate, or pinnately compound, without stipules; venation pinnate or palmate.

叶对生，很少互生或者轮生，单叶或具三小叶或者羽状复叶，无叶柄。脉羽状或者掌状。

YAG laser with 1.06μm wavelength and undoped multimode step quartz fiber are used in experiment,and the cha...

实验上采用 1.0 6μm的YAG激光器和无掺杂多模阶跃石英光纤，测得了能量反射率和波形的变化规律，获得的最大反射率为 69%，脉宽压缩比为

This article describes the structure and working principle of im pu lse steppless speed variator,its present development,its limitation s and counter measures of application,its present progresses are also introduced.

本文介绍了脉动式无级变速器的结构原理、发展现状、应用中的局限及对策，并列举了现有研究进展。

In this paper,an analysis is made to the movement of the adjustable six rod mechanism of the main driving system of Z-M connecting rod pulse step less speed variator and a research has been done to the moving characteristics of the variato

本文对Z－M型连杆式脉动无级变速器的主传动系统的可调六杆机构进行了运动分析，并对该变速器的运动特性进行了研究。

Applying the mechanism known as the roller- swing link cam and the rocking block mechanism,a pulsing stepless speed variator is composed, with its swing angular being adjustable.

利用滚子摆动推杆凸轮机构与摆块机构，综合成摆角可调的脉动式机械无级变速器，并针对其工作原理及特性作了论述。

Leaves velutinous on both surfaces or glabrescent, lateral veins obscure; style and ovary equal in length; capsule glabrous.

叶茸毛在两面或后脱落，侧脉不明显；花柱和子房等长；蒴果无毛。 8 B。 mollicula 软毛黄杨

Leaves glabrous, lateral veins visible adaxially; style ± shorter than ovary; capsule velutinous.

无毛的叶，正面的可见的侧脉；花柱多少短于子房；蒴果茸毛。 9 B。 hebecarpa 毛果黄杨

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。