micrometer measuring rod
测微量杆

• valley point
• value
• value zero
• valve
• valve body
• valve control device
• valve disk gasket
• valve seat
• vanadate glass
• vanadium
• vanadium dioxide
• Van Cittert-Zernike theorem
• vane
• vaned
• vanishing point
• vanish line
• vapo[u]r
• vapo[u]r deposit
• vapo[u]r deposited metal film
• vapo[u]r deposition
• vapo[u]rization
• vapo[u]rization temperature
• vapo[u]rized shellac solution
• vapo[u]rizer
• vapo[u]r lamp