查询词典 trophic level

The results show that: at the spatial level, the water potential of SPAC element in the soil, that in the plant and that in the air gradually descends. SPAC water potential gradients are different among conterminous interfaces of soil, leaf and air are amplified from 1:5:30 to 1:15:90 after watering.

结果表明：在空间水平上，油松林地SPAC各要素水势由土壤到植物再到大气逐步下降，梯度比约为1：5：30；灌水后SPAC相临界面水势差增大，水势梯度比提高至1：15：90。

Generally speaking, at that moment, we may not think of any theory of inspiration. Mostly, according to our ideological level and our goal in life and current need. we convert the external factors to self inspiration factors. This is a silent contest against yourself.

在那种时刻，倒也不见得具体想到什么激励理论，而更多的是根据自身的思想水平、人生目标和当前的迫切需要，把许多外在的因素化为自己的激励因素，这是一场面对自我的无声"较量"。

The constraint imposes a predefined level of consistent neighborhood development to promote contiguity and compactness of urban areas.

约束规定了预定义的邻里发展水平相一致，以促进连续性和市区紧。

M above sea level on average for a typical continental climate.

平均海拔235米，为典型的大陆性气候。

For example: When selecting middle-level managers, we must notice their competence of contingence, using personnel, business and leadership, etc. And for secretaries of Party committee, we must notice their competence of leadership, character, motion and inter-personnel co-operation, etc.

在选拔国有企业行政中层管理者时，应特别注重应变能力、激励指导用人能力、经营能力和组织领导能力等指标；在选拔支部书记时，应更加注重组织领导能力、乐观自信、人际交往与合作、应变能力等指标。

The coastal people's governments at or above county level and the relevant departments thereunder shall relieve or mitigate damages in accordance with the contingence schemes in case of any major marine pollution accidents.

沿海县级以上地方人民政府及其有关部门在发生重大海上污染事故时，必须按照应急计划解除或者减轻危害。

The coastal peoples governments at or above county level and the relevant departments thereunder shall relieve or mitigate damages in accordance with the contingence schemes in case of any major marine pollution accidents.

沿海县级以上地方人民政府及其有关部门在发生重大海上污染事故时，必须按照应急计划解除或者减轻危害。

Contingency Reserve Output/Input 应急储备 The amount of funds, budget, or time needed above the estimate to reduce the risk of overruns of project objectives to a level acceptable to the organization.

为将项目超标风险降低到组织可接受的程度而需要为资金或时间估算多准备的拨备数额。

Bond markets continued to gyrate Thursday after a sharp run-up in 10-year Treasury yields the day before. The bond market pushed yields of 10-year Treasurys down to 3.674% from 3.70% Wednesday, but they remain well over mid-March's 2.5% level.

继美国国债收益率周三大幅上扬后，债券市场的收益率周四仍在高位徘徊。10年期美国国债的收益率从周三的3.70%下跌至周四的3.674%，但仍远高于3月中旬时2.5%的水平。

In this thesis, a semi-classical model of the force on an atom is used to describe the motion of a two-level atom interacting with a standing wave laser field. The velocity dependent force and momentum diffusion are derived through optical Bloch equations by using the matrix form of the continued fraction technique. By investigating the dynamic properties of atoms in laser field, we can control and manipulate the mechanical motion of an atom.

本文利用半经典理论，从二能级原子在激光驻波场中所满足的运动方程出发，推导出密度矩阵元所满足的递推关系，利用矩阵连分数方法求解出密度矩阵元，从而求出依赖于原子运动速度的光压力与动量扩散系数，通过讨论原子在激光场中的动力学行为，为原子在激光场中被囚禁、形成原子列阵以及可控制的量子态，从而为量子信息处理提供理论基础。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48