It is another kind of security. K: Yes.
学:那是另一种安全。克:是的。
The present invention relates to lead-less piezoelectric ceramic composition and is especially one kind of lead-less Li-Na-K niobate piezoelectric ceramic and its preparation process.
一种高居里点铌酸钾钠锂系无铅压电陶瓷及其制备工艺,涉及一种性能优良的无铅压 电陶瓷组合物的配方及制备工艺。
Also have paler-k natural Cream-colored, reseda, no matter which kind of colour, want to let you feel youthful vitality.
也有淡逸自然的米色、浅绿色等,无论哪种色彩,都要让你感受到青春的活力。
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