On modern ships, centrifugal pump with a self-primer has replaced reciprocating pump as bilge pump because()
On modern ships, centrifugal pump with a self-primer has replaced reciprocating pump as bilge pump because()
牙本质粘结修复技术中的primer的主要作用是( )。
primer()
牙本质粘结修复技术中的primer的主要作用是( )。
Undercoats are used ()the primer before the topcoat.
Primer coats are applied to a bare metal surface to give protection against ().
什么是底涂(胶)(primer)?
牙本质粘结修复技术中的primer的主要作用是( )。
何谓简并引物(degenerate primer)?