The feeding selectivity of Sagitta crassa, some ecological factors effect to the feeding rate and their diurnal feeding rhythm were experimentally studied in this paper.

1、

As to the social regulation and control of the urban lower society, on the one hand they inherit the legacy of Chinese feudalism; on the other hand they rub up the dead hand of western fascism.

在对城市下层社会的社会调控方面，他们一方面继承了中国封建主义的衣钵，一方面又糅和了西方法西斯主义的流毒，成为封建的法西斯主义。

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2、

The utility model relates to a fish flake, which comprises a chassis and an outer housing, wherein, the outer housing is a cone frame; the outer surface of the frame is paved with a gauze net;

本实用新型涉及一种晒鱼架，包括底盘和外罩，所述外罩为圆锥体框架，框架外表面铺设纱网；

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3、

As the existent system is renewed by use of DSW-01 water level meter and related techniques, thus it is running normally now.

用DSW-01型精密数字水位仪及相关技术对原系统进行了更新改造，从而保证了该系统的正常运行。

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4、

New type water gauge and infrared modulated propeller type micro current meter are developed, and collective acquisition of distributed velocities is realized.

研制出AW远传振动针式水位仪，新型红外调制流速传感器等新仪器、新设备，实现了分布式流速的集中采集。

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5、

Ionizing radiation following level meter

电离辐射跟踪水位仪

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6、

A Device Design of Water Level Measurement Based on Ultrasonic

超声波水位测距仪的设计

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7、

Design and Implementation of the High-precision Tracking Mode Water Level Measuring Instrument

高精度跟踪式水位测量仪的设计与实现

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8、

Earth's Free Spheroidal Oscillations of the Great Sumatra Earthquake Observed with Digital Water Level Meter

数字化水位仪观测的苏门答腊大地震激发的地球球型自由振荡

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9、

Development and application of single line water gage

单极水位仪的研制与应用

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10、

The Development and Application of the Liquid-medium Ultrasonic Stage Recorder

CCS-II型超声波长期自记水位仪的研制及应用

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11、

This paper mainly introduces the basic structure, method and application of the liquid-medium ultrasonic stage recorder ( CCS-II), emphatically explains the big-measurement and high-accuracy way to measure stage with ultrasonic wave. It also proves that CCS-II is one of recorders to be popularized in the application.

介绍了CCS-II型超声波长期自记水位仪的基本结构、原理及应用，阐述了一种实现大量程、高精度液介式超声波测水位的方法，论证了推广该仪器的可行性。

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12、

It effectively overcome the variety of defects within the limits of current the kind of the present apparatus.

本仪器有效地克服了目前该类仪器的种种缺点（包括我们早期研制的SW-901型水位遥测仪）。

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13、

The Research And Production on JS& B Precise Water Level Instrument

JS&B型精密水位仪的研制

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14、

The response of a buoy water level instrument to fluctuation of the water level in a well

浮标水位仪对水井水位振动的响应

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15、

ABOUT FREQUENCY CHARACTERISTICS AND QUANTITATIVE RELATIONS AMONG PARAMETERS OBTAINED FROM THE LEVEL DETECTOR AND WATER BEARING BED It is considered that the above-mentioned response mainly depends on the intrinsic periods of these two systems.

水位仪及水井含水层的频率特性与其参数间的定量关系认为水井含水层系统与水位观测系统对固体潮与地震波的响应，主要取决于这两个系统的固有周期。

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16、

Application of DSW-01 water level meter to observational well network in Three Gorges

DSW-01型水位仪在三峡井网中的应用

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17、

water temperature and water level meter usage please reference manual.

水温水位仪的使用方法请参照说明书。

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18、

Analysis and exclusion of electrical leakage interference factors of digital water level instrument

数字化水位仪漏电干扰因素的分析与排除

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19、

Real time data transmission between the control system circuits and computer's RS-232 interface is achieved.

实现了激光水位仪与计算机的实时数据传输。

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20、

Xiangxi food and Xiangxi regional culture is come down in one continuous line, the local characteristics of food to promote local tourism economy and play a decisive role to establish regional image.

湘西特色食品与湘西的地域文化是一脉相承的，这些地方特色食品对推动地方的旅游经济和树立地区形象起着举足轻重的作用。

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