比高

An effective sieve size (ie, sieve pore size and the entire screen surface area ratio) larger, then the screen surface of the unit area of higher productivity and screening efficiency.

对于一定的物料而言，筛子的生产率和筛分效率决定于筛孔尺寸。生产率取决于筛面宽度，筛面宽生产率高。筛分效率取决于筛面长度，筛面长筛分效率高。一般长宽比为2。

The primary objective is to study the effect of high-modulus PVA fibers on improving the seismic performance of super-high-strength concrete short column s with high axial pressure ratio.

试验旨在研究在较高轴压比条件下，高弹模PVA纤维对超高强混凝土短柱抗震延性的改善作用。

A piezoelectric laminated plate finite element, HSPLP4, is constructed based on Reddy third-order shearing deformation theorem.

基于Reddy高阶层合板理论，建立了高阶HSPLP4压电有限单元，该单元的性能比同类单元的性能要好。

E. accruing self-thinning;(2) the leaf area indexes of spring wheat increase with the increase of sowing density under two soil moisture levels during the nutritional growing period i.

从拔节期到成熟期水分条件正常的叶面积指数比于早处理的明显要高，而且主要表现在高密度区，但是它们的变化趋势基本一致。

However, for individuals in higher brackets, the interest from municipals will often be greater than from higher paying commercial bonds after reduction for taxes. Gain on sale of municipals is taxable and loss is deductible.

然而，对于按照高税率交税的人群来说，这些从市政债券中获得的收益要比从商业债券中获得的收益扣掉税后的最终收益要高。

Meanwhile, tree species in the upper canopy layer were more stable than that in the lower layers of the fragmented forest.

与连续森林比较，片断热带雨林的植物物种丰富度和物种多样性指数都比较低，而且有相当低比例的大高位芽、中高位芽和附生等生活型植物，而藤本、小高位芽和矮高位芽等生活型植物的比例则较高；泛热带、热带亚洲至热带非洲的区系成分比例较高，而当地成分则减少；群落的上层树木比下层树木更加稳定。

To improve thetemperature stress and increase frost resistance, the roll conrete adopts RCC mix proportion mading up ofmedium-content cementing material, low-content cement, high-content flyash and methods to defer loss of VCso as to meet the requirement of the RCD construction technique. It has the advantages of both th...

为了改善坝体的温度应力，提高其抗冻性，碾压混凝土采用了中胶凝材料总量、低水泥用量、高掺粉煤灰的RCC配合比，并采取措施减缓VC值的增长速度，以满足RCD筑坝技术的要求，使其既保持了RCD筑坝技术的长处，又具有RCC高掺粉煤灰的优点，从而发展了RCD筑坝技术。

There were significant difference responses in ROS metabolism, respiration and the viability of root tip cells between cucumber and figleaf gourd after exposure to the suboptimal root temperature conditions. Under suboptimal root temperature, plant growth was more inhibited in cucumber plant than figleaf gourd.

这些结果表明：不耐热的黑籽南瓜在夏季主要依靠热耗散这条途径来耗散过剩的光能，而耐热的丝瓜具有较高的光呼吸速率可能对其在高温高光强环境的生长比具有较低光呼吸速率的黄瓜与南瓜更有优势。

NOS also reflect the generation of NO, NOS was measured by a method which the oxidation of oxyhaemoglobin to methaemoglobin by NO is monitored spectrophotometrically. The absorption difference between 401 and 421nm was continuously monitored with a dual-wavelength recording spectrophotometer.

由NOS催化生成的NO与氧合血红蛋白反应生成高铁血红蛋白，反应2秒钟完成同时出现A〓和A〓吸光度的变化，测定该变化，根据此时高铁血红蛋白的摩尔吸光系数即可计算出NOS的比活性。

First, muscle is more metabolically active than fat.

首先，肌肉比脂肪新陈代谢活跃，意味肌肉越多，新陈代谢越高，日最小需求量越高，因此我们需要吃更多的食物（这是为什么专业运动员及举重者肌肉发达，能吃很多的缘故）。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。