Engels Phrasal Werkwoord: Ophouden

Onder schot beroven
Vertragen
Om in goede conditie te blijven
Om iets in een hoge positie te ondersteunen zodat het gezien kan worden
Om iemand of iets te ondersteunen om te voorkomen dat ze vallen

Ophouden

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Voorbeeldzinnen voor het Engelse werkwoord Hold Up

1. De groep hield een bank overeind en stal $ 100.000.
2. Sommige runderen waren uit een veld ontsnapt en hielden het verkeer op de weg op.
3. De leraar wilde dat de leerlingen hun posters omhoog hielden zodat iedereen ze kon zien.
4. Wanneer giraffen worden geboren, zijn hun poten normaal gesproken niet sterk genoeg om zichzelf overeind te houden .
5. Zes maanden na het ongeluk belde Barbara om te zien hoe de zenuwen van Yi Lin het hielden .

Het Engelse werkwoord, ophouden , is transitief en scheidbaar.

English Phrasal Verbs

Phrasal verbs can be extremely tricky for learners of English. The reason for this is twofold: there are lots of them and their meaning is not always obvious from the words that make them up. To make things even more difficult, phrasal verbs can have multiple meanings, adding to the headache for learners.

A phrasal verb is made up of a main verb with an attached preposition or adverb. An example of a phrasal verb is run into. Where run is the main verb and into is the preposition. Phrasal verbs can be separated into two groups, intransitive and transitive verbs. Intransitive phrasal verbs do not have a direct object: go out, for example, "I want to go out tonight". Transitive phrasal verbs have a direct object and they can be split up into two further categories: separable and inseparable. With separable transitive phrasal verbs, the verb and the preposition can be split up. For example, both “turn off the radio” and “turn the radio off” are both correct. Inseparable phrasal verbs cannot be split up. For example, “I’ll look after you” is correct, but “I’ll look you after” is not.

Using Storyboard That you can prepare a visual dictionary of phrasal verbs quickly and easily. Even better than that, have your students create their own phrasal verb visual definitions.

Veelgestelde vragen over het Engelse werkwoordelijke uitdrukking: To Hold Up

What is PV Hold-Up in chemical engineering?

PV Hold-Up refers to the total volume of process fluid contained within a system, measured in pressure-volume units. It's used to determine how much material is inside equipment like pipes, reactors, and tanks during operation.

Why is knowing PV Hold-Up important in industrial processes?

Understanding PV Hold-Up is crucial for process safety, efficiency, and control. It helps engineers calculate inventory, manage flow rates, and prevent overfilling or dangerous pressure build-ups.

How do you calculate PV Hold-Up?

To calculate PV Hold-Up, multiply the internal volume of the equipment by the pressure at which the fluid is held. The formula is: PV Hold-Up = Volume × Pressure.

What are some examples of equipment with significant PV Hold-Up?

Pipes, reactors, storage tanks, and heat exchangers are common examples of equipment where PV Hold-Up is measured to monitor and control process conditions.

How does PV Hold-Up affect process safety?

High PV Hold-Up can increase risks of leaks, overpressure, and chemical exposure. Managing hold-up ensures safe operation and quick response to emergencies.