小于

When diving sewage pump motor power 7.5kW or greater than or equal to greater than or equal to the outlet pipe diameter DN100, the pump can be fixed Autotransformer device; when diving sewage pump motor power 7.5kW or less than the outlet diameter is less than when DN100 can be established mobile hose installation.

当潜水排污泵电机功率大于等于7.5kW或出水口管径大于等于DN100时，可采用水泵固定自耦装置；当潜水排污电泵电机功率小于7.5kW或出水口管径小于DN100时，可设软管移动式安装。

All the volcanic rocks present younger K-Ar age (less than 5Ma), which can be termed as Cenozoic rocks. In general speaking, volcansim can be dividied into two eruptive stages. In the first stage, volcanic rocks for Pliocene epoch (4. 4-5Ma) consist of basanite and tephrite, which distributed on Mt. Crater, Cape Bird, and southern bank of Bonney Lake; In the second stage, volcanic rocks for Quaternary (less than 1 Ma) are mainly composed of latite, which are distributed on Cape Rodeys and Cape Evens.On the basis of geochemical data such as major elements, trace elements , rare earth elements, isotope, microprobe analysis, combined with main achievement taken by previous researcher in this area, conclusions are drawn basically as follows

所喷发的火山岩K-Ar年龄值均小于5Ma，为新生代火山岩，大体上可以分为两个喷发阶段，第一个阶段为上新世火山岩(年龄值为4.4-5.0Ma)，主要由碧玄岩和碱玄岩组成，分布于罗斯岛上的克雷克特山、鸟角和泰勒谷的博尼湖南岸；第二阶段为第四纪火山岩(年龄值均小于1Ma)，主要由安粗岩组成，分布于罗斯岛上的罗德角和伊万思角，通过主要元素、微量元素、同位素结合电子探针以及前人的研究成果，我们大体上可以得出如下认识

From soil analysis we could seen that orchard soil salt composing types of the experiment area was Chloride-Soda-Sulfate in the 0~20 and 40~60 cm soil layer depth, the 20~40 cm soil layer was Soda-Chloride- Sulfate. Soil pH was less 8.5, and all soil surface layer salt contents less 0.20%, ESP was less 10, HCO3(superscript -)/Cl(superscript -+SO4(superscript 2-) was less 0.5. There were a little salt and basification phenomena with soil of growth better orchards compare.

从土壤的分析结果看，项目区果园土壤盐分组成类型为：0~20 cm和40~60 cm土层为氯化物－苏打－硫酸盐型；20~40 cm土层为苏打－氯化物－硫酸盐型。pH.5，土壤表层盐分的含量均小于0.20%，ESP值小于10，HCO3/Cl(上标-+SO4(上标 2-)。5，与生长良好的果园区土壤相比有轻微的盐化和碱化现象。

Because our annealing equipment is the CKT-25 continual uniform temperature spheroidization draws back the firing line to be different with the ordinary bell glass stove, the well type stove, the trolley type stove and so on, our equipment's chamber size for the height 50 centimeters, the width 80 centimeters, the chamber space is smaller than far the above type of furnace, the unit space attire stove quantity also far is smaller than the above type of furnace.

因为我们的退火设备为CKT-25连续等温球化退火线有别于普通的钟罩炉，井式炉，台车式炉等，我们设备的炉膛尺寸为高50厘米，宽80厘米，炉膛空间远小于上述炉型，单位空间的装炉量也远小于上述炉型。

The hydrophobic value of Fuchs\' model of humic acidsand Alvarez\'s model of fulvic acids which combined with metal icon smaller than the other molecularmodels; but the refractiveness, polarity, approximate surface, grid surface, volume, mass of the Felbeck\'smodel k of the humic acids and Buffle\'s model of the fulvic acids which interacted with the metal iconsmaller than the other molecular models.

综合比较结果表明：Fuchs—HA和Alvarez—FA与金属离子结合物的疏水性小于其他它腐殖酸分子；Felbeck-HA和Buffle—FA与金属离子结合物的折射性、极性、近似表面积、栅格表面积、体积、质量同比小于其它腐殖酸分子。

The results show that top ethylene contains only 1％ butene, and bottom liquid phase contains less than 1％ ethylene.

结果表明，塔顶乙烯中只含小于1％的1-丁烯；塔底液相中乙烯含量也小于1％。

The cable bend radius for single core should be not less than 16 times of overall cable diametet;for multi-core cable,not less than 12 times of overall cable diameter.

电缆弯曲半径为：单芯电缆不小于电缆外径的16倍；多芯电缆不小于电缆外径的12倍。

The result indicates that the high pH concrete pore solution can reduce corrosion of Cl~ on the carbonize steel.

结果表明，高pH值的混凝土孔隙液能减缓氯离子对碳钢的腐蚀；当pH≥13.6时，在NaC l浓度小于3%的混凝土孔隙液中，碳钢表面因生成钝化膜而不被腐蚀；当pH≤9时，混凝土孔隙液中无论是否存在C l-，碳钢均会被腐蚀；当pH=12.5时，混凝土孔隙液中NaC l浓度小于0.05%，碳钢则不被腐蚀；当混凝土孔隙液中的C l-浓度达到临界氯离子浓度时，碳钢表面的钝化膜开始损坏而被腐蚀，碳钢的腐蚀速度随着C l-浓度的增加而增大。

Taking a carborundum brick of which the thermal conduction coefficient was given as specimen, the measuring error of it is less than 8%.

通过测量已知导热系数的碳化硅砖的导热系数，得其误差小于8%；通过对同一试样的两个小试样进行平行测量，得其相对偏差小于3%。

The friction performances of carbon face were investigated with an inertia friction tester. The torque curve of carbon face was ideal, the coefficient of static friction was lower than that of dynamic in 0.28 MPa, the friction coefficient of static and dynamic decreased with the braking pressure increasing. To the fiber face, the coefficient of dynamic friction of carbon face was more stable in cycle braking process, the wear rate was lower, and it was efficient to protect the couple plate not to be worn.

结果表明：碳质层的摩擦力矩在制动初期上升较快，中间过渡区平稳，尾部翘起较小；在制动压力小于0.28 MPa时静摩擦系数小于动摩擦系数，且动、静摩擦系数均随制动压力增加而减小；相对纤维层而言，采用碳质层摩擦时摩擦力矩曲线形态更好，连续制动时摩擦系数波动较小，磨损率低且能够有效保护偶件，是1种静/动摩擦系数比较低且适用于高载荷工况条件下使用的摩擦材料。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。