使用仪器

Mariners were also able to fix their latitude , by using an instrument called an astrolabe

海员们还可使用星盘这种仪器确定纬度。

Astrophysicists working with groundbased detectors at South Pole and balloon-borne instruments are closing in on such structures,and may report their findings soon.

天体物理学家使用在南极的陆基探测仪和气球搭载的仪器进一步观察这种结构，很快就会报告他们的发现。

Astrophysicists working with groundbased detectors at the South Pole and balloon-borne instruments are closing in on such structures,and may report their findings soon.

天体物理学家使用南极路基探测器及球载仪器观察这些结构，并很快将报道他们的发现结果。

Hands-on experience with biological sample preparation, instrument operation,validation, and maintenance

熟知各类生物样本的准备和测试以及各种临床检验仪器的使用、校验和保养

This paper introduces the working principle and blockdiagram of impulse magnet controlled discharge method that is used in the vacuity tester. The problems encountered in practice are discussed. The slight higher measuring result and incomplete discharge problem encountered in application are also analyzed. Finally, points for attention in future use are remarked.

介绍了真空度测试仪采用的脉冲磁控放电法测试原理和电路框图，并结合实际测试中遇到的问题展开讨论，分析了该仪器在使用中测试结果偏大以及放电不彻底等问题的原因，并对今后试验中需注意的事项提出了建议。

To acquire data in your lab using the virtual instrumentation approach, you will need a DAQ device, a computer configured with LabVIEW and DAQ driver software, and some method of connecting your transducer signal to the DAQ device, such as a connector block, breadboard, cable, or wire.

在实验室中使用虚拟仪器来获得数据，你将需要一个DAQ装置，一个配置了labview和DAQ驱动软件的电脑，和将你的传感器信号连接到DAQ装置的方法，比如一个连接块，面包板，电缆或电线。

The effective dosage of procaterol, a bronchodilator, is quite low. The concentration of procaterol present in human plasma is sometimes even lower than the detection limit of analytical instruments commonly used.

摘要 Procaterol为一种支气管扩张药物，通常其有效的使用剂量极低，因此在人体血浆里的浓度也相对很小，甚至远低於一般侦测仪器的侦测极限。

After mainenervations being drawn out and being dried for 4 hours at 60℃,1156 samples of tobacco leaves from different tobacco producing-area were made into powder (≤0.13 mm). Reducing sugar, total sugar, nicotine, nitrogen, potassium and chlorine of more than 1000 samples from different tobacco producing-area were determined with classical chemical or instrumental methods. By scanning these samples with Fourier transform Near Infrared spectrometer (MARIXT-I produced by Bucker) we obtained their spectrograms, pretreated the spectrograms with a chemometrics software (OPUS 5.5) to debase the noises influence on spectrum information, and built a chemometrics model by means of Partial Least2Squares. The chemometric model was optimized some times and validated with some other samples.

选取全国不同烟草生产地区的1156余烟叶样品，采用相同的预处理条件(去处主脉，60℃烘干4小时)，处理成40目待测粉末样品，采用行业经典的化学分析方法或准确可靠仪器方法测定其常规成分含量，在条件一致(20℃～24℃，环境湿度≤40 RH%)的实验室环境中，使用市场上主流的傅立叶变换红外光谱仪(德国BRUKER公司生产的MARIXT-I)上进行图谱扫描，采用OPUS5.5化学计量学软件，对光谱进行适当的预处理，减弱以至于消除各种噪声对光谱信息的影响，用偏最小二乘回归法建立常规成分预测模型，并进行了反复优化和未知样品模型外验证。

Burette has 10 divisions in 1 cm 3, fill in 50 cm 3 in maximum.

滴定管是十分准确的仪器，它用来量度使用了的

It has the function about arithmetic auto-produce,the test bulletin auto-compile also.Debugging and system's exploitation become more convenienter.It can calculability the max force,the bend force,the no-votable bend force,the average peeling off force,the modulus of elasticity,etc.

还具有算法自动生成、试验报告自动编辑功能；大大方便了调试和系统再开发能力，可计算最大力、屈服力、非比例屈服力、平均剥离力、弹性模量等参数；使用高精度的测量仪器，集高度自动化、智能化于一体。

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。