Roj Hmab Rau Cov Menyuam Pob Zeb Sib Tsoo Taub Hau Ntaus

Khoom Piav Qhia
1. Nws yog ntsia rau ntawm cov dav dav tshuab kom zom cov menyuam roj hmab.
2. Adopts Cov Pob Zeb Sib Tsoo sib tsoo kom nce roj hmab chais.
3. Qhov siab tshaj plaws linear ceev yog 27m / s.

Qho kev pab
1. Kev pab rau lub site ntawm chaw tuaj yeem raug xaiv.
2. Txij Nkawm Kev Pabcuam rau Lub Neej Ntev.
3. Kev txhawb nqa online yog siv tau.
4. Cov ntaub ntawv cov txuj ci yuav muab.
5. Kev pabcuam tuaj yeem muab tau.
6. Kev hloov chaw kho thiab kho cov kev pabcuam tuaj yeem muab tau.