使用仪器

The chronometer can be used not only i n room but also in field.

本仪器既可室内使用，也可野外使用。

The flatness in the same ideal plane of double separate guide rails can not be measured using the general flatness measuring instrument, but it can be completed using method introduced in this paper (using compensator level and height vernier gauges).

两分离导轨在同一理想平面下的平面度无法使用目前通用的平面度测量仪器进行测量，本文介绍的测量方法（使用自动安平水准仪，高度游标卡尺）可以完成这样的测量任务。

Usage: Complement nursing that part uses, coordinate an instrument being put into use having an effect to eliminate the fat granule and understand crinkle seal, smallpox seal and chromatosis healing.

使用方法：局部使用的补充护理，配合仪器使用有效清除油脂粒且清除愈合的皱印，痘印及色素沉着。

Usage: Complement nursing that part uses, coordinate an instrument being put into use having an effect to eliminate the fat granule and understand crinkle seal, smallpox seal and chromatosis healing.

使用要领：局部使用的补充照顾护士，共同仪器使用有效断根油脂粒且断根愈合的皱印，痘印及色素沉着。

Loggings on seven horizontal cased holes are made by the protection method, and the result shows that all the logging data are first-rate.

在此基础上，研制了测井仪器机械保护装置，采用国产仪器和使用机械保护法在7口井上进行多次水平套管井固放磁测井，测井资料优等品率均为100％。

First, based on the measurements of absorption cross-section, the absorption characters of the main polluted gases in flue gas were deeply studied, and found that SO_2、 NO、 NO_2、 NH_3 had a character of approximate periods absorption at some wave band, which is a good chance of a new measurement introduced. Secondly, the factors about absorption cross-section of the gases measured, which affect on the measurement precision of DOAS, is studied deeply. The influence of pressure and temperature on absorption cross-section was given special research, and the compensated measures were given to the gases based on the character of the gases. Thirdly, in practical measurement, it must have been satisfied that the monochromator was consisted with the reference spectrum, which was based on absorption cross-section. In order to satisfy the consistency, the technique of reversion in the image was introduced, the reversions of spectrums were realized with wiener filter and noise elimination based on wavelet transform.

首先从吸收截面的测量入手，对烟气中主要的污染气体SO_2、NO、NO_2、NH_3的吸收特性进行详细研究，发现这些气体在局部区域具有准周期吸收特征，这为引入新的测量方法提供了契机；其次，对决定DOAS测量精度的被测气体吸收截面的诸多问题进行了深入研究，重点研究了压力、温度对被测气体吸收截面的影响，并针对被测气体的特征提出了相应的修正措施；再次，在实际测量中，要求所使用的光谱仪必须与以吸收截面为基础的参考光谱相匹配，为了满足匹配这一条件，文中将图像复原技术引入到光谱复原，使用维纳滤波和小波消噪实现了光谱的复原，将复原后的光谱与所使用光谱仪的仪器函数卷积，即可实现；最后，在对DOAS测量原理详细分析的基础上，对传统的最小二乘—差分吸收光谱法进行了详细的阐述，通过实验证实两点：1。

In this paper,Qi Yanhuai,an astronomer in the Qing dynasty,and his vertical direct east and west sun dials,transit instrument and celestial sphere instrument were studied in detail.

介绍了清代天文学家齐彦槐的生平及其制作的面东西日晷、中星仪和天球仪等天文仪器，进一步探讨了这些天文仪器的制作原理和使用方法。

Dept.of surv.

然而EDM作为一种光学和电子器件组成的测量仪器，由于生产、运输、使用过程中的误差、震动和环境因素的影响以及电子器件本身的老化等，导致仪器的部分性能指标发生变化，最终是使测距仪测量观测值的精度受到影响。

They are differentiated twice with approximate ideal differentiators to obtain the corrected accelerogram.

本文通过对数字强震仪系统使用的力平衡加速度计的仪器响应误差进行分析，提出了一个校正仪器响应失真的处理方法，即对未校正记录做低通滤波后运用近似理想微分器做两次微分得到校正加速度记录。

If a different instrument is used, the absolute absorbance of each instrument should be established.

如果使用不同的仪器，应给每个仪器制定绝对的吸收率。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。