Just as a snowflake requires a nucleus to spur the formation of its intricate crystal structure - a catalyst was required to spur the formation of the desired community.
一片雪花，必须有凝结核才能形成其复杂的晶体结构。在我们期望建立的群体中，同样需要这样的催化剂。
If the generation of the nucleation rate faster, and crystal nucleus formation, growth speed is slow, it generated more cell number, grain is fine.
如果晶核的生成速度较快，而晶核生成后的成长速度较慢，则生成的晶核数目较多，晶粒较细。
Meanwhile, fine crystal discharge device was added in crystallizer to decline quantity of crystal nucleus and to increase crystal growth rate so as to reach the aim of improving crystalline quality.
同时在结晶器中增加细晶排出装置，降低晶核数量，提高晶体生长速率，达到改善结晶质量的目的。
The solidification process of liquid steel is forming and growing pro cess of crystal nucleus, and formation of crystal nucleus depends on overcooling degree and solid particles in liquid steel.
钢水的凝固过程是晶核的形成及长大过程，而晶核的形成则依靠钢水的过冷度和钢水中的固体质点。
A kind of special protein on the surface of agglutinative bacteria can be used to metabolize, collect and absorb the gold atoms, and then gold crystal nucleus will be formed.
利用聚金细菌体表存在一种特殊的蛋白质，对金原子进行代谢，聚集、吸附金原子，形成金结晶核。
A kind of special protein on the surface of agglutinative bacteria can be used to metabolize, collect and absorb the gold atoms, and then gold crystal nucleus will be formed.
利用聚金细菌体表存在一种特殊的蛋白质，对金原子进行代谢，聚集、吸附金原子，形成金结晶核。
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