查询词典 lower level

UV-B-induced damage in such leaves could be reduced with 0.5 mmol.L-1 NaHSO3 treatment; brown spots on the leaf surface were reduced in number, the degree of leaf wilt was reduced, degradation of chlorophyll and carotinoid was reduced and flavonoid level was increased. With the NaHSO3 treatment, the content of H2O2 in leaves of Phaseolus vulgaris under enhanc ed UV-B radiation was significantly lower than in controls, and the activities of antioxidant enzymes were higher with treatment than in controls.

结果表明：与未处理对照相比较，用0.5 mmol.L-1 NaHSO3处理的离体红芸豆叶片表面褐色斑减少、边缘蜷曲及萎蔫程度降低；且能延缓叶片中叶绿素和类胡萝卜素含量的降低；使类黄酮含量升高；叶片中过氧化物酶和抗坏血酸过氧化物酶活性升高，过氧化氢(H2O2)含量降低。

Total bacteria of edible areca catechu handled by microwave (2450MHz, 650W and 50s) is lower than 10cfu/g that is below examination level.

食用槟榔经2450MHz、650W微波处理50s，可使细菌总数低于10cfu/g，细菌总数远低于检测水平。

Mary: So do I. That's why I've been trying to lower my cholesterol level.

玛丽：我也是，这就是为什么我一直想降低胆固醇指数的原因。

At the final follow-up, there were significantly better results in terms of functional capacity and pain level in patients with lower grades of chronicity but mostly due also to worse initial baseline values.

在最后一次随访时，慢性疼痛低的患者功能活动能力和疼痛强度都有明显好转，但大部分也是因为开始基线价值太差。

The transcription level of c-Ha-ras oncogene and the content of P21ras in those exposed to chrysotile treated in advance with three kinds of chemicals mentioned above were significantly lower than those in untreated.

在上述3种化合物预处理的温石棉组，HEL细胞 c-Ha-ras癌基因的转录水平及P21ras蛋白含量均明显低于未处理温石棉组。

Histological observation was performed. Results The peak of serum CINC concentrations occurred 3 h after reperfusion with the difference between the groups with and without ONO-5046 being significant. Expression peak of CINC mRNA in the pancreatic graft occurred 3 h after reperfusion with the expression level in the ONO-5046 treated group significantly lower than in the ONO-5046 untreated group. The activity of MPO in the treated group was obviously decreased as compared with in the untreated group.

结果 CINC于再灌注后3小时出现峰值，治疗组为(7.24±1.46)μg/L，对照组为(28.4±1.85)μg/L，差异显著；移植物中CINC mRNA于再灌注后3小时表达最强，治疗组的表达水平明显低于对照组；MPO的活性，治疗组显著低于对照组；治疗组的胰小叶间质水肿及胰小叶间质和胰小叶内的中性粒细胞浸润较轻。

Level circular canal fixed under stator coil, 'lower circular canal' for short, is installed according to number of line bars to connect it with insulation draft tube via airproof parts, and to ensure coolant in line bar evenly distributed.

定子绕组下方配置的水平环管，简称下环管。按定子线棒数在环管上装设接口，经密封构件与绝缘引流管连接，以确保所有线棒中冷却介质的均匀分配。

1Niche construction can lead to stable coexistence of diverse genotypes in spatially structured population, which supports a stable polymorphism even without heterozygote superiority.(2)With habitat deterioration, niche construction accelerates the formation of steady polymorphism and hence impedes the harmful influences of environment on the population, which might embody a life-history strategy of organism under the unfavorable environment.(3)Niche construction results in the coexistence with alternative polymorphism through genotype-environment feedback and limited gene flow.(4)The niche-constructing organism is an active force to alter its environment and hence the direction of natural selection in order to better survival.(5)Spatial dynamics and distribution pattern of metapopulation are profoundly influenced by time-lagged niche construction.(6)Metapopulation size can reach a fixed level in the recency effect and equal weighting of time lag but is statistical stability in primacy effect, which implies the primacy effect is most remarkable.(7)The increment in the relative weightingof each generation\' niche construction and the length of time lag are significant factors for system destabilization.(8)Moderate capacity of positive niche construction benefits the metapopulation persistence.(9)The narrowing of niche breadth can decrease the metapopulation size and thereby increase the extinction risk.(10)The coupled function of time lag and niche construction make the system oscillation and generate the spiral wave, spiral-broken and circular wave in heterogeneous habitat.The spatial distributions of metapopulation and resource content are complementary due to a phase lag of their both frequencies.(12)Metapopulation persistence with niche construction depends not only on the balance between colonization and extinction, but also on the balance between the ability of niche construction and natural dissipation of habitat.(13)Metapopula-tion can survive under certain condition when the percent of suitable patches in habitat is lower than the ration of extinction to colonization.(14)Two thresholds exist in the process of transition of habitat quality dynamics from unsuitable to suitable, which include the intensity of niche construction and the initial condition of system.(15)Metapopulation size is positive correlated with the ability of positive niche construction, which means that organism or population who has strongly positive influences on their environment plays an important role to maintain the available habitat.

通过上述几个方面的研究，主要得出以下15条结论：(1)生态位构建可使空间结构种群，甚至是在没有杂合子优势的条件下，形成多种可能的稳定基因型分布模式；(2)随着环境的破坏与恶化，种群的生态位构建作用加速其较早形成稳定多态以阻碍环境对种群的不利影响，解释了有机体在不利环境下的一种生活史对策；(3)生态位构建作用通过基因型—环境反馈机制及有限的基因交流导致基因型多态的稳定共存；(4)有机体的生态位构建作用是一种积极的动力改变环境进而改变其自然选择的方向；(5)生态位构建的时滞作用对集合种群动态和空间分布产生深刻影响；(6)集合种群大小在时滞的崭新效应和等权重效应下达到一固定值，而在首位效应下达到统计稳定，表明首位效应的影响最显著；(7)首位效应下生态位构建相对权重的增量和时滞的长度是影响系统不稳定性动态的关键因素；(8)适中的生态位构建强度有利于集合种群的续存；(9)生态位宽度变窄会减少集合种群的数量从而增加其灭绝风险；(10)时滞和生态位构建的双重作用使系统产生周期振荡，并在异质性环境中产生稳定的螺旋波，破碎的螺旋波和环形波三种分布模式；(11)集合种群与资源含量的空间分布因为相滞而互补；(12)具有生态位构建的集合种群续存不仅取决于侵占率与灭绝率之间的平衡，而且依赖于生态位构建能力同其生境的自然消耗速率之间的妥协；(13)当生境中适合侵占的斑块比例小于其侵占率与灭绝率之比时，生态位构建作用促使集合种群在一定条件下续存：(14)生境斑块的状态从不适合到适合转变过程中存在生态位构建强度和系统初始条件这两个阈值；(15)集合种群的大小同正生态位构建能力正相关，意味着对环境具有较强正作用的有机体对维持有效生境起积极作用。

The changes in the diatom assemblages indicate that the SCS at that time was more closed and the sea level was lower than at present. Meanwhile, the B?lling-Aller?

硅藻组合中优势种和特征种含量的变化，指示了晚更新世末期南海海洋环境较现代封闭、海平面较现代为低的古地理环境。

Tungsten metal at the bottom of the design, leading-edge design of a lower technological level of different players can be hit more easily to the sweet spot, as at the same time, double ball design to ensure that the club and ball touch the grass, so as to achieve a more successful hit .

钨金属底部设计，更低的前缘设计使不同技术水平的选手都能更轻易击到甜蜜点，以此同时，双重球设计确保球杆与草的击球触感，从而达到更成功的击球。

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％。