Tus cwj mem twg yog xim dub thiab softer?

Cov txheej txheem:

Tus cwj mem twg yog xim dub thiab softer?
Tus cwj mem twg yog xim dub thiab softer?
Anonim

"B" xaum muaj cov graphite softer. (Tus "B" sawv cev rau "dub".) Tus lej uas pom nyob rau hauv pem hauv ntej ntawm tsab ntawv qhia tias tus cwj mem muag muag li cas. Hauv lwm lo lus, tus cwj mem "4H" nyuaj dua li "2H" xaum thaum "4B" xaum yog softer dua "2B" cwjmem.

xaum dub thiab softest yog dab tsi?

B9 yog qhov softest thiab darkest. 9H yog lub teeb thiab nyuaj tshaj graphite mem hluav. Yog li B6 yog softer thiab tsaus dua li B2. Ib qho 6H yog ib qho nyuaj thiab sib zog dua 2H thiab hnyav dua thiab sib zog dua HB lossis B mem hluav.

HB mem hluav twg yog qhov tsaus thiab softer?

HB GRAPHITE SCALE

Qhov thib ob graphite grading scale yog hu ua HB nplai. Feem ntau cov xaum xaum sab nraud ntawm Teb Chaws Asmeskas siv qhov ntsuas no, siv tsab ntawv "H" los qhia txog cov cwj mem nyuaj. Ib yam li ntawd, tus neeg tsim cwj mem yuav siv tsab ntawv " B" txhawm rau xaiv qhov dub ntawm tus cwj mem lub cim, qhia tias cov hmoov txhuas softer.

Yuav ua li cas mem hluav yuav muab rau koj ib tug softer duab?

Kev kos duab, nws tseem nyuaj heev. Qhov ntau B's, softer tus cwj mem yog. Qhov no txhais tau hais tias 5B mem hluav yog softer dua 2B thiab 5B yuav tsim ib qho xim tsaus. Lub 7B yog qhov softest thiab darkest ntawm cov cwj mem (8B thiab 9XXB xaum txawm softer thiab darker).

Qhov twg tsaus 2B lossis 4B?

2B nyuaj dua 4B thiab 4B nyuaj duamas 6b. Txawm li cas los xij, tag nrho cov no yog nyob rau sab mos (B). Cov hauv qab no yog tus qauv ntsuas. Qhov nyuaj tshaj plaws yog sab laug, softest ntawm sab xis: 10H, 9H, 8H, 7H, 6H, 5H, 4H, 3H, 2H, H, F, HB, B, 2B, 3B, 4B, 5B, 6B, 7B, 8B, 8B, 10B.

Pom zoo:

Nthuav cov khoom
Leej twg nyob hauv rhinebeck ny?
Nyeem ntxiv

Leej twg nyob hauv rhinebeck ny?

Jeffrey Dean Morgan & Hilarie Burton Cov neeg ua yeeb yam sib yuav Jeffrey Dean Morgan thiab Hilarie Burton muaj kev ua liaj ua teb hauv Rhinebeck hauv Dutchess County thiab muaj kev koom tes hauv kev pab nyiaj txiag hauv Hudson Valley. Lawv koom nrog Samuel Lub Khw Qab Zib nrog Ant-Man actor Paul Rudd thiab nws tus poj niam Julie, uas kuj nyob hauv Rhinebeck.

Leej twg them tus nqi zog olympic?
Nyeem ntxiv

Leej twg them tus nqi zog olympic?

Teb Chaws Asmeskas tsuas yog them $ 37, 500 rau cov yeej kub, $ 22, 500 rau nyiaj, thiab $ 15, 000 rau tooj liab. Cov qauv kev them nyiaj hauv Teb Chaws Asmeskas zoo ib yam li lwm lub tebchaws hauv Asmeskas xws li Brazil thiab Chile, uas muaj kev txhawb nqa nyiaj txiag hauv kaum tawm txhiab tus.

Puas yog inducted txhais tau tias?
Nyeem ntxiv

Puas yog inducted txhais tau tias?

transitive verb. 1: rau muab tso rau hauv kev muaj cai(raws li kev pab los yog chaw ua haujlwm): nruab tau inducted ua tus thawj tswj hwm ntawm lub tsev kawm ntawv qib siab. 2a: lees paub raws li ib tug tswv cuab inducted rau hauv ib tug scholastic haiv neeg.