1. Pump에서의 Cavitation (공동현상) 에 대하여 기술하고 이로 생길 수 있는 문제점과 그 방지책에 대해 논하시오
- Cavitation이란
유체가 넓은 유로에서 좁을 곳으로 고속 유입하거나 벽면의 요철, 만곡부 등으로 흐름이 직선적이지 못할 때 유체는 저압이 되고 포화증기압보다 낮아지면 기화되어 기포가
Korn Shell – History
명령어 편집(형식②)
Shell Command :
fc [-e editor][-nlr][start][end]
명령어의 범위에 editor를 불러들임.
편집 종료시 편집된 줄의 명령어 실행.
editor가 미지정시 $FCEDIT에 저장된 경로의 편집기 사용.(디폴트 경로-”/bin/ed”)
명령어 편집/저장 후, 그것을 자동적으로 보여준 뒤 실행.
특
pipe brings a plumber to a basement
where they is the smell of death.
Her eyes have come to rest on the spot of the camera eye in
the balcony... Her voice chokes off. She stares.
HELENS POV:
Sitting in the front row of the balcony, a YOUNG RED-HEADED
MAN (DARYLL LEE CULLUM) leans forward, resting his tattooed
arms on the railing. He smiles intimately at HELEN.
HELEN cuts her eyes to the left. She
flexible.
A man of the world manages.
Of course!
Around the world...
...the roving Yankee...
...mixes business and pleasure.
He laughs at risk...
...weighs anchor wherever--
Care for a drink?
--wherever he happens to be.
Until one day a storm...
...tangles his sails and rigging.
Lifes not worth living...
...unless he can pick the flowers
on every shore...
Thats an easy philosophy.
...and love a g
flexible!
The only way to keep control
is to be organized.
The only way to keep control
is to be unorganized.
The only way to keep control...
- is to be unorganized.
- Youre right.
I lost my lighter.
Being jealous means youre afraid
to lose the other person.
Being jealous means you dont trust
the other person.
So when youre jealous,
its love!
If theres no trust,
youre not in love!
THEY DONT MAKE