descension theory

Causes and Countermeasures for the Decrease of Milk Fat Percentage in Dairy Cows;

奶牛乳脂率下降的原因与对策

Prevention of direct current insulation decrease in electric system;

电力系统直流绝缘下降及防范探讨

On the Reasons of Students' Physical Stamina Decrease and its Countermeasures

学生耐力素质下降原因及对策研究

Global convergence or a class of conjugate descent algorithm;

一族共扼下降算法的全局收敛性

F is adescent of f.

对于一类N维单位体到自身的连续映射f,我们利用了f的下降F以及Sharkovskii定理给出了这种映射有素周期点的一个必要条件———设F是f的下降,如果f有素周期点,则存在x∈Ω(f),使x是准周期点,但不是周期点。

The problem of environment caused by groundwater level continuous decline in the inland basins of arid area, Northwest China ——an example in middle reaches of Heihe river basin;

干旱区内陆平原地下水持续下降及引起的环境问题——以河西走廊黑河流域中游地区为例

A comparison of these statistics shows that every time there was one or two items of our students physical quality stop or decline.

从1979年至今我国已进行了六次大规模的学生体质健康调查,调查数据前后比较显示,我国学生的体能素质每次调查都有一到两项出现停滞或下降,到2002年我国学生的体能素质已经持续出现全面下降的趋势。

Excessive sand digging from the riverbed and runoff decline was mainly responsible for the dro.

结果表明,近十多年来,南港低潮位持续下降,而高潮位变化不大,2005年平均潮差达4。

To descend by means of a parachute.

跳伞，伞降用降落伞下降

drawdown [groundwater]

水位下降〔地下水〕

descent:The act or an instance of descending.

"下降,降落:下降的动作或实例."

A downward movement.

下降，落下向下的运动

The temperature is going down; The barometer is falling; Real estate prices are coming down.

温度正在下降；气压下降了；房地产价格正在下降。

compared with the figure in 1992, it has been decreased by 55%, among which the number in the urban areas has been decreased by 74% and in the rural areas the number has been decreased by 51%.

比1992年下降55%，其中城市下降74%，农村下降51%；

A falling inflection of the voice, as at the end of a sentence.

声音降落，降句调发音时下降的音调

lagging edge

【电】(脉冲的)下降边

The birth rate have fall to twelve per hundred.

出生率下降到12％。

The earthworm population had declined by 70%.

蚯蚓数量下降70％。

A downward tendency, as in the price of a stock.

下降趋势如股票价格等的下降趋势

A descent by stages or steps.

递减，下降一种逐级或逐步的递减，下降

The Modified Steepest Descent Method──Best Point in Steepest Descent method

改进的最速下降法─最好点最速下降法

a lowering of temperature below the freezing point

下降到冰点以下的温度

The temperature fell to 26°below zero.

温度下降到零下26度。

a vertiginous drop, descent, etc

令人眩晕的下落、 下降等.

Of or relating to psychological depression.

（生理功能）衰弱的，下降的生理下降的，与生理下降有关的

But when the temperature drops, so does the humidity level.

但是气温下降时，湿度也随之降低。