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The total proportion of B, C and D levels decreased in frequency distribution and the community evenness increased.

与原调查结果29科67属97种相比，分别减少5科、5属、25种。

With decreased sensitivity to 1/f-noise a discernible output signal can be produced with much lower excitation currents or voltage.

对1/f 噪声造成灵敏度降低问题一个(yi1 ge4)可识别输出信号可能减弱比较低的励磁电流或电压。

Nectarine flowers were cultivated with 0, 5, 15, 25, 45, 80mg/L exogenous salicylic acid liquid in zero temperature. The results showed that: pistil shape of nectarine flowers was destroyed seriously, electrolyte exosmosis rate and the content of Malondialdehyde increased, activities of superoxide dismutase and peroxidase decreased.

在0℃低温下，用0、5、15、25、45和80mg/L的外源SA处理'冀东1号'桃花，试验结果表明，0℃低温使'冀东1号'桃花雌蕊形态恶变，电解质外渗率增强，SOD和POD活性下降，MDA含量增高。

Beijingensis under three droughttreatments, normal, moderate and severe stresses. The results showed:(1) the canker disease ofboth cultivars was serious gradually with increased drought;(2) the bark tissue cells sufferedplasmolysis, more evident with the severity of drought stress;(3) under the drought andinoculation with B. dothidea, cells of two cultivars damaged at different degree, mailyrepresented in the changes of organelles, such as chloroplast swollen and distorted, number ofmitochondria increased and membrane system indistinct; then organelles suffered furtherdamagement with inoculation time, thinned mitochondrias stroma, decreased cristae, crumpledand partly broken membrane of chloroplasts with stroma exosmosis. At last, the chloroplastspartly disorganized;(4) the hyphae growed mainly intercellular in resistant cultivar and notonly intercellular but also intracellular in susceptible cultivar, which directly caused thenecrosis of cells;(5) under the severe drought, the damage of cells enhanced the infection ofpathogen and drought and pathogen stressed together and promoted the disease development;the damage from pathogen on cells was more serious than that from drought.

结果显示：(1)随着干旱胁迫程度的增加，2种杨树溃疡病害发生渐趋严重；(2)干旱胁迫下，杨树树皮组织细胞发生质壁分离，并随胁迫程度的增加而严重；(3)干旱胁迫下接种病原菌，2种杨树细胞发生不同程度的损伤，主要表现为细胞器发生较大变化，如出现叶绿体肿胀变形、线粒体数量增多，质膜模糊不清等现象；随接种时间的延长，细胞器受到进一步损伤，叶绿体被膜折皱，严重时局部破裂，基质外渗，并部分最终解体；(4)毛白杨中的菌丝主要在细胞间隙中穿行，而北京杨的菌丝除在细胞间隙中生长之外，侵入细胞内部也较多，直接导致细胞的解体；(5)干旱胁迫下细胞的损伤促进了病原菌的侵染，干旱和病原菌的双重胁迫加剧了病害的发生程度，并且病原菌侵染对细胞的破坏程度大于水分胁迫。

But after stimulated by exotoxin, the content of NF in dome decreased significantly.

而受到外毒素刺激后，在圆小囊淋巴组织圆顶部位出现了显著降低。

The result shows that by adopting ULPI model, total area and back-end complexity are both expectedly decreased.

通过数据分析表明，该设计有效地降低了芯片的总面积和制版复杂度，达到了设计目标。

The frequency of regeneration and the mean number of shoots per explant were decreased with the increase of Ca〓 concentration.

无Ca〓培养基上的不定芽再生频率最高，随着Ca〓浓度的增加，再生频率及单位外植体芽数降低。

During aging, Gastel index which is sensible to aging condition decreased with increase of aging temperature and aging time. As the same time, the exponential relationship between the change of viscosity and aging time was discovered. Both the gastel index and the aging index can be used to evaluate the aging resistance of the colored paving asphalt.

彩色沥青老化过程中，沥青胶体不稳定指数对沥青老化条件很敏感，随老化温度的升高和老化时间的延长而增加；粘度随老化时间的延长近似呈指数关系增加，所以可以用胶体不稳定指数和老化指数来评价彩色沥青的老化性能。

The accumulation factors of heavy metal in different kinds of leafy vegetables decreased with the increase of the extractable heavy metal concentration, which can be described best by the exponential equation y=ax(superscript b.

不同品种蔬菜对各重金属的富集系数随可提取态重金属含量增加呈幂函数形式递减，且递减趋势与土壤中可提取态重金属含量范围密切相关。

A critical velocity was set in every iteration and the value of the critical velocity decreased according to exponential series in every iteration.

其方法是，设置一个随迭代的进行按指数级数减小的临界速度。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。