Tsev › Daim ntawv qhia qhov loj ntawm laj

Daim ntawv qhia qhov loj ntawm laj

Cov neeg saib ntuj sib piv cov laj nrog cov khoom siv txhua hnub. Kev Pab Cuam Ntuj Teb Chaws siv cov qhov loj no hauv cov ntsiab lus hmoov ntuj; laj 1 inch (quarter size) los sis loj dua yog qhov tseem ceeb.

Qhov loj ntawm hau	Millimeters	Sib piv nrog	Tseem ceeb
0.25 in	6 mm	pea
0.50 in	13 mm	marble
0.75 in	19 mm	1-cent coin
0.88 in	22 mm	5-cent coin
1.00 in	25 mm	Liam nyiaj 25-sent	✓
1.25 in	32 mm	Liam nyiaj 50-sent	✓
1.50 in	38 mm	ping pong ball	✓
1.75 in	44 mm	golf ball	✓
2.00 in	51 mm	hen egg	✓
2.50 in	64 mm	tennis ball	✓
2.75 in	70 mm	baseball	✓
3.00 in	76 mm	tea cup	✓
4.00 in	102 mm	grapefruit	✓
4.50 in	114 mm	softball	✓

Laj ib ncig 1 inch tuaj yeem ua rau tsheb ciav hiav thiab rhuav tshem cov shingles qub; laj golf-ball (1.75 in) thiab loj dua feem ntau rhuav tshem qhov rais, skylights thiab siding. Qhov ntau npaum li cas ntawm kev rhuav tshem ntawm hmoov ntuj kuj nyob ntawm cua thiab hnub qub ntawm dav tsev.