偏硼酸钡产品主要用于涂料工业中底漆、面漆，是一种新型防锈原料。
Partial barium borate products used in the coatings industry primer, topcoat, is a new type of anti-corrosion materials.
本文以偏硼酸钡晶体为例，分析了三个光波的二阶非线性相互作用，并推导单轴晶体的有效非线性系数的表达式。
The second order nonlinear optical effects on the three-wave is analyzed, and the nonlinear optical coefficient of the uniaxial crystal is deduced from an example of the BBO.
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