至今

In developed countries such as America and japan magnesium die casting is used largely in automobile and communication industry.

我国是镁的产量大国，但是镁合金压铸件的产量很少，至今还没有生产镁合金压铸机的能力。

I have tried many diet pills, and this by far is the best diet pill.

我已经尝试过很多种减肥药了，这是至今我觉得最好的减肥药。

Finite difference method of one of the oldest numerical simulation methods, and it is used far-ranging recently.

有限差分方法是计算机数值模拟最早采用的方法之一，至今仍被广泛运用。

Also set operations to find the union, intersect, difference set and inclusion relations can be carried out.

然而至今还没有一种理想的方法用来在计算机内表示集合及其完成集合的一系列操作[1]。

And the devices'properties and improve the properties to prepare the artificial boundary. The bi-epitaxial YBCO superconducting film with 45°grain boundary in a-b plane was made for the first time in China in this article by magnetic sputtering instrument that was designed and fabricated by ourselves. The x-ray θ～ 2θ scan 、Ф scan、rocking curve、non-symmetry diffraction and SEM、 TEM、AES etc. were utilized in the study.

为此，本工作采用自行设计制造的全金属密封超高真空磁控溅射设备，利用x射线θ～2θ扫描、Ф扫描、摇摆曲线、非对称衍射及SEM、TEM、AES等分析测试手段，在国内首次、也是至今唯一的一家，制得a—b平面内具有45°人工晶界的双外延YBCO超导薄膜，并进而得到双外延晶界Josephson结。

This thesis focus on the solution to the diffusion wave equation, specific contents are summarized as follows

但直接根据扩散波方程解进行洪水演算至今尚未在实际洪水预报中得到广泛的应用。

Monitoring the development of wireless digital wireless network is now one of the most widely used.

无线数字监控是无线网络发展至今最为广泛的应用之一。

And my life-partner Dillon. We have been happily together for many years now and are just in disbelief

狄龙经营。我们至今已经很快乐的在一起很多年了，并且难以置信

Ha! That girl and my mother are still very friendly. They always go out for dim-sum together. When she was giving birth to her baby, my mother paid her a visit and cooked soup for her.

蔬茈~国女至今同我妈咪仍然好friend，成日一齐饮茶，佢生BB时，我妈咪都有去探佢，煲汤佢饮。

To investigate the mechanism of the origination of combustion noise, a three dimensional wave equation is derived by using the control equation set of KIVA for deduction.

由于这些振荡受到很多因素影响，其复杂性导致了对燃烧过程中的噪声至今仍未有一个实时计算的手段。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。