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strong frost
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  强霜冻
     The Synoptic Analysis of A Rare Strong Frost and Freeze Injury Occurred in 2004 Spring in Gansu Province
     甘肃春季一场罕见强霜冻、冻害天气的分析
短句来源
     The previous atmospheric circulation adjustment and development,climate background,weather characteristic,west wind index change,T213 objective forecast of the rare strong frost and freeze injury event occurred on May 3~5 in 2004 in Gansu province were analyzed in the paper,and it will have some certain directive significance for frost prediction,disaster prevention and reduction further in the future.
     对2004年5月3~5日的强霜冻天气,本文从前期大气环流形势的调整与演变、气候背景、天气特征等方面进行分析研究,并就T213客观预报对这次天气的预报进行了分析。 对于今后进一步做好霜冻预报防灾减灾,具有一定的指导意义。
短句来源
  “strong frost”译为未确定词的双语例句
     Cause Analysis and Prevention Countermeasures of Disasters of Strong Frost in the Hexi Corridor in Spring
     河西走廊春季强冻害成因及防御对策
短句来源
     Since it has Sood characteristics, such as strong frost resistance, strong carbonation resistance, good resistance to chemical attack and good durability, therefore it really possesses practical value and certain development prospect.
     由于该混凝土有良好的性能,如抗冻性、抗碳化能力强,耐化学侵蚀性和耐久性好,因此,它确有实用价值和一定的发展前途。
短句来源
     As a highway-tunnel with the highest elevation in Asia,the engineering geolog-ical condition of Dabanshan highway-tunnel is complicated, espicially the strong frost actionand complex geological structure.
     亚洲最高的公路隧道—大坂山公路隧道,由于海拔高、寒冻作用强烈和地质构造复杂,决定了隧道工程地质条件的复杂。
短句来源
     It is the vertical migration that causes strong frost heave in the upper subgrade.
     这种竖向迁移,导致路基上部土层产生强烈冻胀作用.
短句来源
     In order to select maize varieties with strong frost hardiness,five maize varieties were chosen to compare ability of frost hardiness by suffering from nature frost and simulation frost experiment. The results showed that Nongda 108 had the strongest ability to freezing hardiness and Shandan 931 had the weakest ability to freezing hardiness among 5 maize varieties.
     试验通过对5个玉米品种的霜冻模拟试验和自然霜冻试验,利用目测法和离子外渗法得出:在选定的5个品种中农大108抗霜冻能力最强,陕单931抗霜冻能力最弱;
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  相似匹配句对
     The Frost
     霜
短句来源
     Frost and H. C.
     C.
短句来源
     The effects of N and P were strong.
     不同营养障碍使铃重有不同程度的降低 ,其中以 N、P营养影响最大 ;
短句来源
     strong positive.
     强阳性(++),积分>4分。
短句来源
     It is the vertical migration that causes strong frost heave in the upper subgrade.
     这种竖向迁移,导致路基上部土层产生强烈冻胀作用.
短句来源
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  strong frost
Under the impact of strong frost, photochemical efficiency was strongly inhibited in both sets of plants.
      
In the absence of strong frost, photochemical efficiency was lower under short-day conditions than under a long-day photoperiod.
      
During the working of the railway, the tunnels were closed during the nights; and at that time bricks did not show so strong frost weathering.
      


The root segments of three grape varieties were frozen at certain temperatures below 0℃. As comparative indices of their frost damage, the percentage of leakage of electrolytes and the percentage of reduction of TTC for the treated tissues were measured by means of electric conductivity method and TTC method respectively. The treated root segments were then cultivated in warm conditions for 7-10 days to see whether they were alive or not in order to deduce the threshold index value and critical temperature...

The root segments of three grape varieties were frozen at certain temperatures below 0℃. As comparative indices of their frost damage, the percentage of leakage of electrolytes and the percentage of reduction of TTC for the treated tissues were measured by means of electric conductivity method and TTC method respectively. The treated root segments were then cultivated in warm conditions for 7-10 days to see whether they were alive or not in order to deduce the threshold index value and critical temperature causing inreversible damage, and used for frost tolerance of the root tissues. The results showed that among the three grape varieties, the Amur grape has the strongest frost tolerance in root, Beta comes second and Jufong the poorest. In the former two varieties, the frost tolerance increased gradually as the winter became severer, and expressed the intrinsic inherent genetics. But the latter showed neither significant change nor any rules. When the growing season came, their frost tolerance decreased significantly all the same. In this paper the variation of the two indices and the reason why the peak of TTC reduction oecured in the range of sub-damage temperature were discussed. The results showed that the electric conductivity method seemes to be more practical than TTC method, and the latter has unique sensitivity in research into the mechanism of frost tolerance.

用不同程度的零下低温对三种葡萄的根段进行冰冻处理,用电导法和TTC还原法检测处理组织的电解质渗出率和TTC还原率,作为冰冻损伤程度的定量比较指标。将各组处理的根段保温培养7~10天,从其外观变化鉴别死活,据以推断冰冻对根组织不可逆致伤的临界指标值和临界温度,用来比较鉴定其耐寒力强弱。结果表明:三种葡萄根的耐寒力以山葡萄最强,贝达次之,巨峰最低。且前二者的耐寒力随着冬季进程而增强,逐渐显示出其固有的耐寒遗传特性,而巨峰的变化不明显和没有规律。至春季生长期,其耐寒性都显著降低。本文还根据研究结果讨论了两种指标之间的关系和变化规律。并着重分析了次致伤低温区出现TTC还原高峰的问题。两种测定方法在研究葡萄根的耐寒力方面,表现出电导法的实用性优于TTC还原法,但TTC法在探索耐寒机理方面有其独到的灵敏性。

Experimental results show that an ice segregation and consquently a strong frost heave could occur in powered calcium carbonate while rich in moisture. Some regresion formulas could be expressed by: Tf=-5 199.62 W-3274, R = -15.401+5.709 In Win closed system and η =4.495 Vf-1109 in open system, in where, Tf , W, R, η and Vf are its freezing point, water content, frost heave rate, heave ratio and frost penetration rate respectively. However, its frost susceptibility might be controlled...

Experimental results show that an ice segregation and consquently a strong frost heave could occur in powered calcium carbonate while rich in moisture. Some regresion formulas could be expressed by: Tf=-5 199.62 W-3274, R = -15.401+5.709 In Win closed system and η =4.495 Vf-1109 in open system, in where, Tf , W, R, η and Vf are its freezing point, water content, frost heave rate, heave ratio and frost penetration rate respectively. However, its frost susceptibility might be controlled by moisture and a special anti-heave agent mixed in.

试验表明,富水碳酸钙粉沫冻结时,将出现大量分凝冰,产生强的冻胀。试验结果经回归分析后得到下列有关方程:在封闭系统中,T_f=-5199.62W~(-3.274),R=-15.40+5.71 lnW;在开敞系统中,η=4.495V_f~(-1.109)式中T_f,W,R,η及V_f分别为冻结温度、初始含水量、冻胀速率、冻胀率及冻结速率。控制其含水量,或在其中掺和抗冻剂,可以减经、甚至消除其冻胀敏感性。

The fly ash slag-alkali concrete is characterized by taking one valence metallic compound as activator. The strength with more than 50 MPa may be made by this new method at normal atmospheric temperature. Since it has Sood characteristics, such as strong frost resistance, strong carbonation resistance, good resistance to chemical attack and good durability, therefore it really possesses practical value and certain development prospect.

粉煤灰渣—碱混凝土的特点是以一价金属化合物为激发剂。该新方法可在常温下制取500号以上的高强混凝土。由于该混凝土有良好的性能,如抗冻性、抗碳化能力强,耐化学侵蚀性和耐久性好,因此,它确有实用价值和一定的发展前途。

 
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