高达

More than 50 GaAs/GaAlAs High Power Single Quantum Well Semiconductor Lasers are aged. The threshold current decreases during the early aging (first 520 h) and the largest decrease is 57 mA. From the aging result of more than 1000 h at constant current, we find that output power increases during the early aging , and then decay slowly according to exponent law.

通过对50余只808nm的GaAs/GaAlAs高功率单量子阱远结半导体激光器的老化实验观测，在老化初期（前520h），阈值电流随老化时间的延长而下降，下降幅度高达57mA，从1000h多的恒流电老化结果可以看出，器件的输出光功率在老化初期有所上升，随后，表现出按指数规律缓慢下降的行为。

Experiments have been done to decontaminate the petroleum waste water with using these strains and we get excellent results. The main advantages of this method are two points .

这种方法具有的优点是：降解时间短只需4天，石油降解率高达85.8％，一般的方法降解时间至少一两个星期，石油降解率只有20-50％左右。

You want to decrease the resistance to act as much as you can.

你想，以减少阻力，以法高达你可以。

The difference of analyzes result could be up to several times even several decuple if could not add the restrict to the earthquake input.

如果对输入地震波不加限制，分析结果的差异可以高达几倍甚至几十倍。

If you are an educator, you can deduct up to $250 for purchasing educational materials for your classroom.

如果你是一位教育工作者，你可以扣除高达250美元的、用于购买学生教材的税额。

As a result, up to 90% of the American population may be deficient in essential fatty acids.

因此，高达90 ％的美国人可能是缺乏必需脂肪酸。

Monetary easing--even unorthodox--is like pushing on a string when （1） the problems of the economy are of insolvency/credit rather than just illiquidity;（2） there is a global glut of capacity （housing, autos and consumer durables and massive excess capacity, because of years of overinvestment by China, Asia and other emerging markets）, while strapped firms and households don't react to lower interest rates, as it takes years to work out this glut;（3） deflation keeps real policy rates high and rising while nominal policy rates are close to zero; and （4） high yield spreads are still 2,000 basis points relative to safe Treasuries in spite of zero policy rates.

因为目前存在四方面问题：（1）金融层面的问题不仅是流动性不足，还在于资不抵债；（2）由于中国、亚洲及其他新兴市场持续多年的过剩投资，在住房、汽车、耐用消费品等领域形成了庞大的全球性产能过剩；（3）尽管名义政策利率已接近零点，但通缩却使得实际政策利率居高不下，甚至继续上升；（4）尽管政策利率接近零点，但高风险的高收益证券与安全的美国国债之间的利差仍高达2000个基点。

In view of that, many developed countries have set about working on the exploit of degradable lubricating oil and additives.

美国约有32%的废润滑油排放到环境中，德国每年渗入土壤中的链锯油高达5000吨。

It's almost 40 degree Celsius, so nobody would like to walk outside in such cruel weather.

气温几乎高达40摄氏度，所以谁也不愿意在这种可恶的天气出门。

The steam sauna has a temperature up to 190 degree Fahrenheit and the infrared sauna heats to a temperature between 120 degree to 150 degree Fahrenheit.

蒸汽桑拿有一个温度高达190华氏度和红外桑拿加热到120度之间的150华氏度的温度。

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％。