The chemical composition of the largest spot on thin layer plate was identified by Infrared spectrum, and its content was determined by TLC scanning.
挥发大蒜油在薄层板上分离出的最大斑点的化学成分用红外光谱法定性，用薄层扫描法定量。
To plate metal is to cover it with a thin layer of gold, or silver, etc.
电镀金属就是把金属薄薄地覆盖上一层金或银等。
The crushed ore leaving the mill was allowed to flow over an inclined copper plate covered with a thin layer of mercury.
离开磨机的破碎矿石溢流到一个有薄汞层的倾斜铜盘中。
Aquatint: it is an etching process on copper or steel by means of nitric acid. in this technique a thin layer of resin dust is sprinkled on the plate and heated to make it adhere.
水彩色调：用硝酸在钢片或铜片上作腐蚀的蚀刻法。这个技巧是在版面上洒上一层薄薄的树脂粉，加热把它粘附于版面。
I fell Khan is the use of the ordinary playing back a layer of thin film and plate connected intermediate get into the air.
我的落汗方法就是利用普通扑克牌的背面的一层薄膜与牌连接的中间弄进空气。
The fiber is firstly coated with a thin copper or nickel plate with electroless plating method. Then, a thicker nickel plate is coated on the surface of the conductive layer.
提供了保护过程的技术细节，首先在光纤表面进行化学镀处理获得导电的薄镍层或铜层，然后在该导电层上进行电镀镍。
The fiber is firstly coated with a thin copper or nickel plate with electroless plating method. Then, a thicker nickel plate is coated on the surface of the conductive layer.
提供了保护过程的技术细节，首先在光纤表面进行化学镀处理获得导电的薄镍层或铜层，然后在该导电层上进行电镀镍。
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