至今

Established from the date of this system, the time has been more than half a century.

这一制度从确立至今，已经有半个多世纪的时日。

It was a medical and political debacle, one that spawned fears of flu vaccinations lingering to today.

这是一次医疗和政治的崩溃，导致人们对流感疫苗的恐惧至今挥之不去。

This is the most important piece of debris so far recovered.

这是至今找到的所有残片中最重要的一件。

Some of Crosby's many Decca recordings are currently available.

Croby的许多为DECCA公司录制的唱片，至今还在发售。

On the other hand, studies on application of chitosan to wastewater focus on limited fields such as decolor, removal of metal ions, and so on, most of which were carried out in the 1980s and 1990s.

国内外关于壳聚糖絮凝剂的制备研究较多，但大部分是采用传统的碱液法，成本高，而且耗时；对于恒功率微波法制备壳聚糖的研究相对较少，而对于变功率微波法制备壳聚糖的研究至今还未见有报导。

From 1920s up to Now, various techniques and methods for wave field decomposition, propagation and migration/imaging have been well developed, such as the Kirchhoff asymptotic method, frequency-wavenumber domain phase-shift and phase-shift-plus-interpolation methods, and the one-way wave equation based phase-screen and generalized screen methods, etc.

自上个世纪二十年代至今，波场分解、传播与偏移成像技术经历了将近一个世纪的发展，形成了多种不同的方法，如Kirchhoff波动方程高频近似解方法，频率-波数域的相移(phase-shift)方法和相移-内插方法，以及在混合域中基于单向波动方程的相位屏、广义屏方法等。

As our tenet says,"Develop with Quality,live on Honesty",we always focus on delicate appearance,proved quality and practicality and decorativeness.

办厂至今一直秉承著"质量求发展、以信誉求生存"的硬道理为宗旨，所生产出的产品质量可靠、造型精美，极具实用性装饰性。

Is a colorful undersea world, the human understanding of the deep-sea organisms is still poorly understood.

海底是一个多彩的世界，人类对于深海生物的了解至今仍知之甚少。

Points so far down, many investors have been deep-set.

6124点至今下跌，许多投资者已经根深蒂固。

Defeater of Evil and Fish Intestine are in Wu.

至今湛卢在楚，胜邪、鱼肠在吴，纯钧、巨阙二剑则在大王宫中。

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％。