Unique a 3 segments'temperature curve program achieves a stage heating with good protection of BGA.

In large scale integrated chip field, the IC of BGA encapsulation was widely used.

在大规模集成芯片中以BGA( 球栅阵列)封装的IC芯片被广泛使用.

This technique has been successfully applied in the dimensional measurement of BGA chip leads.

此技术已成功应用于BGA芯片管脚的三维尺寸测量中.

The activities of MDH, HSL in backfat were strongly correlated to BFT ( P < 0.01 ).

背膘组织中的MDH 、 HSL与背膘厚呈极显著相关 ( P<0.01 ).

The construction of the BFM-910 indicator uses components with a long term time and temperature stability.

建造 BFM -910显示器使用的部件使用寿命长且温度稳定性好.

Features . Inductive meter BFM-910 is a highly accurate and stable device.

感应流量表 BFM -910是高度精确和稳定的设备.

But it is difficult to makeuse of BFG due to the low calorific value of BFG.

但是实际生产中由于其热值低,充分利用困难.

The fertilization inhibitory factors of BFF may be derived from serum rather than from follicular cells.

BFF的这种受精抑制因子可能来自血清而不是卵泡细胞.

Therefore, adding 10 % of mixing BFF in maturation medium could be the best choice.

因此, 成熟培养液中以添加10%的混合BFF较为适宜.

In vitro culture system of buffalo fetal fibroblasts ( BFF ) was investigated in this study.

本实验探讨了适合水牛胎儿成纤维细胞 ( BFF ) 体外培养的体系.

A new method for mold filling simulation based on body-fitted coordinate ( BFC ) is presented.

介绍了一种基于适体坐标系 ( BFC ) 的充型过程模拟方法.

Thep 16 protein expression of R-20 , R-30 , T-35, T-54 cells weremuch lower than that of BEP 2 D cell.

2与正常BEP2D细胞相比,R -20, R -30, T -35, T -54细胞p16蛋白mRNA的表达均降低.

In addition, the incrcasedcontent of left ventricular protein was alsosignificantly decreased by Bep treatment.

苄普地尔组左心室蛋白质含量较未治疗组亦显著减少,但未恢复至正常.

The risk analysis methods include BEP analysis, sensitivity analysis and probability analysis.

风险分析的方法主要有盈亏平衡分析 、 敏感性分析和概率分析三种.

In the experiment of classifying Chinese documents, it is BEP value is about 83 %.

在中文文本分类实验中, 可以达到83%的BEP值.

The study on BEM has been a challenging topic for the scientists, the engineers and technicians.

故对边界元法的研究一直很受学者和工程人员的重视.

The difficulty of treatment of the nearly singular integrals hindered applications of Boundary Element Method ( BEM ).

几乎奇异积分的计算困难阻碍了 边界 元法的工程应用.

A finite element method with boundary element method ( FEM-BEM ) is presented for computing electromagnetic induction.

提出了用有限元 - 边界元法计算三维电磁场感应问题.

Based on the original scheme, a new version fast multipole BEM is presented for two-dimensional elasticity.

在初始格式的基础上, 进一步提出适用于二维弹性力学问题的新型快速多极边界元格式.

The boundary integral in BEM Boundary Element Method effects the precision and the speed method.

边界元中的边界积分计算影响计算精度和计算速度.

Depois de iniciar o projecto , primeiramente faz bem o trabalho da prepara & ccedil ; & atilde ; o.

工程开工后, 首先做好施工准备工作.