延长

T he expectation of life has increased enormously .

生命的展望将大幅度延长

With the prolong of human expectative life, aging of the population and de- mentia are increasing.

目的 随着人类期望寿命的延长，人口老龄化和痴呆的发病率呈上升趋势。

My passport will expire and i want to extend it.

我的护照快过期了，我想延长期限。

The mass loss patterns of four type litters fitted exponential model, and the decomposition rate could be well predicted by their lignin/N ratio.

结果表明：与对照相比，降水量减少条件下，蒙古栎叶凋落物的初始N、P、K浓度显著升高，初始木质素浓度显著降低，凋落物分解速率大，N、P、K矿化率高，N和P固持时间缩短；降水量增加情况下，其凋落物初始N浓度显著降低、木质素浓度显著升高，N、P、K矿化率低，N和P固持时间延长。4种类型叶片凋落物的质量损失过程均符合指数降解模型，分解速率可以由凋落物木质素／N来预测。

Methods anti-tumor activity of Phellinus linteus was estimated by the longevity of EAC mice,the immune effect of tumorous mice was tested by the experiment of carbon particle expurgation and the IL-2 concentration in serum of tumorous mice was determined by ELISA.

以小鼠艾氏腹水癌的生命延长率评价桑黄的抗肿瘤作用，以炭末廓清实验观察荷瘤小鼠非特异性免疫功能，以ELISA法测定荷瘤小鼠血清IL-2浓度。

Methods The anti-tumor activity of Phellinus linteus was estimated by the longevity of EAC mice,the immune effect of tumorous mice was tested by the experiment of carbon particle expurgation and the IL-2 concentration in serum of tumorous mice was determined by ELISA.

目的 观察桑黄对肿瘤的抑制作用及对机体免疫功能的影响方法以小鼠艾氏腹水癌的生命延长率评价桑黄的抗肿瘤作用，以炭末廓清实验观察荷瘤小鼠非特异性免疫功能，以ELISA法测定荷瘤小鼠血清IL-2浓度。

Methods The anti-tumor activity ofPhellinus linteus was estimated by the longevity of EAC mice,theimmune effect of tumorous mice was tested by the experiment ofcarbon particle expurgation and the IL-2 concentration in serum oftumorous mice was determined by ELISA.

以小鼠艾氏腹水癌的生命延长率评价桑黄的抗肿瘤作用，以炭末廓清实验观察荷瘤小鼠非特异性免疫功能，以ELISA法测定荷瘤小鼠血清IL-2浓度。

School may need ** a lot of extra money to pay for an extant extended day.

学校可能需要许多额外的资金来支付延长的工作时间。

I hope I can extend my vacation.

我希望我的假期能延长。

To extend the life of the product.

延长了产品的使用寿命。

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％。