At røve med våben
At forsinke
At forblive i god stand
At støtte noget i en høj position, for at det kan ses
At støtte nogen eller noget for at forhindre dem i at falde ned
Det engelske phrasalverbum, to hold up , er transitivt og kan adskilles.
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.
{Microdata type="HowTo" id="9843"}PV Hold-Up refererer til det samlede volumen af procesvæske indeholdt i et system, målt i tryk-volumen-enheder. Det bruges til at bestemme, hvor meget materiale der er inde i udstyr som rør, reaktorer og tanke under drift.
Forståelsen af PV Hold-Up er afgørende for proces-sikkerhed, effektivitet og kontrol. Det hjælper ingeniører med at beregne lagerbeholdning, styre flowhastigheder og forhindre overfyldning eller farlig trykopbygning.
For at beregne PV Hold-Up multipliceres den interne volumen af udstyret med det tryk, hvorpå væsken holdes. Formlen er: PV Hold-Up = Volumen × Tryk.
Rør, reaktorer, lagertanke og varmevekslere er almindelige eksempler på udstyr, hvor PV Hold-Up måles for at overvåge og kontrollere procesforhold.
Højt PV Hold-Up kan øge risikoen for lækager, overtryk og kemiske eksponeringer. At styre hold-up'en sikrer sikker drift og hurtig respons på nødsituationer.