查询词典 amount limit

It proves that tree top leaves suffer from water stress and hydraulic limitation becomes greater with tree height.Water stress influence tree height growth in several aspects:firstly is the influence of exterior water condition,and community average tree height is positive with exterior water condition.Secondly, hydraulic limitation influences individual tree structure and function.Xeromorphic structure,Lower water potential and turgor pressure limit cell division and expansion,which restrict gas exchange and carbon assimilation capability.However,respiration consumption increases with the spread of tree crown.Shortage of nutrient limits carbon investigation on new leave growth and may ultimately limit tree growth.Thus,the main limitation of tree height is water.

水分对树高生长的限制首先是外在的水分状况，群落的总体高度随外界水分状况的变差而变矮；再就是水力限制对单株树木的结构和功能的影响，水势降低、膨压减小使细胞的分裂和扩展受限，旱生型结构加剧水力对气体交换能力的限制、使光合碳同化能力受到限制、而呼吸消耗却随着树木个体的增大而增大，制造营养物质不足、使得营养亏缺、造成投入新枝叶的营养受限，最终限制了树高继续增长。

However, unlike most industrial particles there are no exposure limits, such as Permissible Exposure Limit or Threshold Limit Value, established for biological agents such as SARS. Therefore, respirators are not a guarantee that the user will not contract SARS.

然而，和绝大多数工业环境中存在的颗粒状污染物不同的是，SARS病毒并没有暴露限值，因此，佩戴防护口罩虽然能够帮助降低其暴露水平，却无法保证使用者绝对不接触SARS病毒，即不排除存在暴露的可能，不排除受感染，生病甚至死亡的可能。

However, unlike most industrial particles there are no exposure limits, such as Permissible Exposure Limit or Threshold Limit Value, established for biological agents such as swine influenza virus.

然而，和绝大多数工业环境中存在的颗粒状污染物不同的是，微生物，如甲型（H1N1）流感病毒没有暴露限值，如职业接触限值，因此，虽然佩戴呼吸防护口罩能够帮助降低暴露水平，却无法保证使用者绝对不接触甲型（H1N1）流感病毒，不排除存在暴露的可能，不排除受感染、生病甚至死亡的可能。

However,unlike most industrial particles there are no exposure limits, such as Permissible Exposure Limit or Threshold Limit Value, established for biological agents such as SARS. Therefore, respirators are not a guarantee that the user will not contract SARS. Respirators may help reduce exposures

然而，和绝大多数工业环境中存在的颗粒状污染物不同的是，SARS病毒并没有暴露限值，因此，佩戴防护口罩虽然能够帮助降低其暴露水平，却无法保证使用者绝对不接触SARS病毒，即不排除存在暴露的可能，不排除受感染、生病甚至死亡的可能。

The system through the temperature examination electric circuit sensation greenhouse big awning temperature change, gives monolithic integrated circuit processing through a/d conversion, through keyboard hypothesis upper limit temperature and lower limit temperature, when the greenhouse big awning temperature is lower than the hypothesis the temperature lower limiting value, start heater unit to greenhouse warming, when the greenhouse big awning temperature is higher than the hypothesis in the temperature the limiting value, stopped heating up, has realized the greenhouse big awning observation automation.

系统通过温度检测电路感知温室大棚温度变化，通过模数转换送给单片机处理，通过键盘设定上限温度和下限温度，当温室大棚温度低于设定的温度下限值时，启动点暖风机给温室加温，当温室大棚温度高于设定的温度上限值时，停止加热，实现了温室大棚测控的自动化。

The forming limit diagram relates to strain paths, then the forming limit diagram made in linear strain path can not be directly used to complex strain paths.

根据试验测定的不锈钢板材成形极限图用理论方法建立了不锈钢板材的成形极限应力图，其真实板材成形极限图和成形极限应力图均是一条直线，只有这样板材成形才能满足塑性变形体积不变条件。

For protecting the switch spring against overloading, into the lever mechanism is integrated a buffer or shock absorber, which is elastically flexible above a limit force associated with the operating force of the switch spring in the switching point and below the limit force is substantially rigid.

为使开关弹簧免于过负荷，一减震器集成到杠杆机构上，该减震器在一与开关弹簧在开关点上的操作力大于限制力时是弹性挠性的，而小于该限制力时则是刚性的。

Yu,1991,the plastic limit analysis for oblique plates and the unified limit loading expression are given,which includes a set of solutions from the single-shear yield criterion(Tresca,1864)to the twin-shear yield criterion (M.H.Yu,1961).The relative curves between qand b are also got for square plates and rhombic plates.

从而得到一系列从单剪屈服准则(特雷斯卡，1864)到三剪屈服准则(米泽斯，1913)再到双剪屈服准则(俞茂宏，1961)的各种斜板的极限载荷，并得到矩形板和菱形板的极限均布载荷p随不同屈服准则的变化曲线，文献中已有的解均为统一解析解的特例。

Yesterday, millions of sales in the single-letter limit, Run-chuan of the shares should continue to limit the opening.

昨天，在单字母的限制，润股份川销售数百万应继续限制的开放。

Prepared to intervene in the main unit, the price will never reach the region on their own costs do not stop, but will try for the cost of stock away from the area. Dec. 2 to Dec. 5, which limit immeasurable, single-letter limit in none more than 100,000,000 shares.

对于有备介入该股的主力来说，绝不会使股价到达自己的成本区域就停止不前，而一定会拉升股价远离成本区。12月2到12月5日，该股无量涨停，涨停封单却都在一亿股以上。

This paper designs the communication system of radio telescope FAST.

针对500m口径球面射电望远镜FAST分布式控制系统的特点完成了其通信系统的设计。

Political sheep's step-by-step a large number of fossils unearthed in the county soil Ma Ali after rural village in the middle of sallow pelitic siltstone.

步氏和政羊化石大量出土于广河县阿力麻土乡后山村，产于灰黄色泥质粉砂岩中。