Each blade is grown from a single crystal of alloy for strength and then coated with tough ceramics.
每片涡轮机叶片由高强度单晶合金制成，上面覆盖强韧陶瓷涂层。
2
Sampler keep clean, do not be coated in the blade part of the anti-rust oil.
经常保持取样器清洁，不用时应在刀刃部分涂防锈油。
3
Practical tests show that the performance of cemented carbide anvils, coatedblade and drill bits with graded structure developed in this dissertation are superior to those with regular structure.