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However, the technology bottle-neck of RNAi is still lack of efficient siRNA transfection carrier.

然而，当今制约RNAi技术发展的瓶颈仍然是缺乏有效的小核苷酸体内转导载体材料。

In the finite-difference time-domain method, the perfectly matched layer is a kind of high efficient absorbing boundary condition.

在时域有限差分算法中，完全匹配层是一种高效的吸收边界条件。

We analyze the boundary structure of interval Bézier curves in detail. Efficient and reliable algorithms for evaluating the boundaries of the interval Bézier curve in 2D and 3D are presented.

作者对区间Bézier曲线的边界结构作了精细的分析，详细地给出了计算平面区间Bézier曲线边界的编程算法，并将边界曲线表示为B样条。

This algorithm is simple and efficient because the boundary line and connecting property of the structure are applied.

由于利用了结构的边界线段和结构图的连通性等特点，使得算法既简单又有效。

Compared with Finite Element Method and Finite Difference Method, Boundary Integral Equation Method is computationally more efficient.

与有限元法和有限差分法相比，该方法具有更高的计算效率。

By analyzing the characteristics of the boundary pixels to formulate a boundary pixel extraction operator, the operator need only calculate up to 4 pixels neighborhood pixels, is efficient, fast, he can direct the use of binary images are extracted as the boundary pixel, are single-pixel wide border.

通过分析边界象素的特征，归纳出一个边界象素提取算子，该算子最多只需要计算象素的4邻域象素，运算量小，速度快，运用他能直接提取出二值图象的边界象素，得到单象素宽的边界。

A new efficient method of numerical iteration solution to the boundary value problem was put forward.

结合航天飞机和飞马火箭的制导律，进行了制导技术的开发，提出了一种新的基于该控制律的火箭真空段运动的多变量边值问题的有效数值迭代解法。

In the community before the strong support of friends, Bowring machinery foundry will, as always, in the 'pragmatic, progressive and efficient, first-class' spirit and make persistent efforts to create greater glories.

在社会各界朋友的大力支持才下，宝灵机械铸造厂将一如既往，本着'务实、奋进、高效、一流'的精神，再接再厉，再创辉煌。

The aircraft is also equipped with automatic pressure cloth box, single-person operation, more efficient.

该机还配置了自动压布框，单人操作，效率更高。

Filtering injection process of paint and dirt, water drift in tail box after filtering, injection of environmental air filter, receive efficient.

过滤喷油过程中的漂移油漆和灰尘，用水过滤后在尾箱沉淀，使喷油的环境空气得到高效过滤。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。