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21

The principle and use of contact angle

The contact angle is defined as the angle θ between the gas-liquid interface tangent and the solid-liquid interface at the intersection of gas, liquid and solid.If θ < 90°, it is really hydrophilic, that is, the liquid can wet the solid, and the smaller the angle, the better the wettability; i

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The principle and use of contact angle

10

Main structure and application of high voltage circuit breaker

The high-voltage circuit breaker (or high-voltage switch) is the main power control equipment of the substation. When the system is in normal operation, it can cut off and connect the no-load and load current of the line and various electrical equipment; when the system fails, It cooperates with the

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Main structure and application of high voltage circuit breaker

04

Detailed explanation of the working principle and operation method of vacuum oil filter

Vacuum oil filter is a commonly used oil filter product, which can be used for on-site oil filtering and refilling of various oil-immersed transformers, oil-immersed current and voltage transformers and high-voltage oil-less circuit breakers. Today we mainly introduce the working principle and opera

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Detailed explanation of the working principle and operation method of vacuum oil filter

30

How can the sensitivity of the gas chromatograph be improved?

The gas chromatograph mainly uses the difference of the boiling point, polarity and adsorption properties of the substance to realize the separation of the mixture. After the sample to be analyzed is vaporized in the gasification chamber, the inert gas (ie carrier gas, also know

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How can the sensitivity of the gas chromatograph be improved?

20

Precautions and troubleshooting of the tension tester

Intermolecular Forces formed liquid surface tension.Numbers of tension reflect on liquid sample’s physics and chemical properties, it is one of the most important index to product quality.I.Matters needing attention1. Working environment:The temperature of the test environment should be

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Precautions and troubleshooting of the tension tester
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