By observing and describing the anatomical trait of bald coot's digestive apparatus, and comparing with water-fowl, grouse pheasant and so on, this paper discover that bald coot has no thv element bursa as waterfowl.

Factors Affecting Restrain Incrustant for Magnetized Water

影响磁化水抑垢效果的因素

The lumbar disc and bilateral zygapophyseal joints play an very important role in the stability of lumber spine. They form the tri-joint complex ( TJC).

腰椎双侧关节突关节和腰椎间盘构成了运动节段的稳定三角，称关节三联体结构（Tri-joint complex，TJC），三者相互制约，使脊柱趋向稳定。

TJC contact net measuring apparatus uses supersonic, electronic, optical and mechanical methods to measure the height and pulling_out value of electrical engine contact net.

接触网测量仪采用超声、电子、光学、机械等手段测量电力机车接触网的高度和拉出值。

Analysis and Equalization of the TJC Contact Net Measuring Instrumental Errors

接触网测量仪误差的分析及修正

TJD program is a general-purpose program for linear circuits. It can be used for direct circuit analysis, alternating circuit analysis, frequency character analysis, transient analysis and direct and alternating circuit sensitivity analysis.

TJD电路分析通用程序可以对线性电路作直流分析、交流分析、幅频相频特性分析、瞬态分析以及交直流灵敏度分析。

TJD Program for Electronic Circuits Analysis

TJD电路分析通用程序

In this paper, the influence of wave on scale control of heat transfer equipment was studied.

本文选择糖厂蒸发罐积垢为研究对象,研究了超声波防除传热设备积垢的作用.

Scale-proof electroplating layer on a Ti Ti alloy substrate and its preparation are both disclosed herewith.

本发明涉及一种钛基防积垢镀层及其制备方法,属于表面防护领域.

This cup is stained on the inside.

这杯子的内侧有积垢.

We need the courage of cleansing the Bugean stable to against corruption.

我们要以彻底扫清积垢的精力反对于败北.

Highway has country, province, county, countryside, village 5 administration social estate.

公路有国 、 省 、 县 、 乡 、 村5个行政等级.

Scale deposit and scale control is one of important problems in oilfield water injection.

结垢与防垢是油田注水开发中所遇到的重要问题之一.

Can we prevent dental calculus and odontolith?

牙垢和牙石可以预防 吗 ?

What are dental calculus and odontolith?

什么是牙垢和牙石?

How to remove dental calculus and odontolith?

怎样除去牙垢和牙石 呢 ?

It can also be used in desalter, evaporator, heating and cooling facilities and water pipeline.

也可用于造水机 、 蒸发器 、 加热设备、冷却设备和供水管路,以清除水垢和水锈.

At present, the method to remove scale is mainly divided into: chemical methods and physical methods.

目前, 国内清除水垢的方法主要分为: 化学方法和物理方法.

This causes the salt to drop out of solution, with net effect being a harden scale.

无机碱盐水溶液的饱和点通常随着温度和浓度的升高而降低,这将造成皂化剂中盐的析出,形成坚固的水垢.

Water scales the boiler.

水使锅炉生水垢.

Flush dirt and scale from supply pipe.

从供应管道内冲刷污垢和水垢.