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- Polyvinylformal based adhesive for fireworks is introduced. It have advantages of simple technology. high bond strength.good initial tack.thermal stability and freeze resistance. 介绍了一种以聚乙烯醇缩甲醛为主体的烟花胶。它的制造工艺简单,采用此法制造的烟花胶粘接强度高,初粘性、热稳定性、耐冻性能好。
- In the experiment the author study on increasing the durability (including strength, dry shrinkage, abrasion resistance and freeze resistance) of roller compacted concrete (RCC) by mixing fly ash. 摘要试验采用在碾压混凝土中掺入粉煤灰(其掺量占胶凝材料总量的10%25~45%25)的方法来提高碾压混凝土耐久性(包括强度、干缩、耐磨性和抗冻性)。
- Antifreeze proteins are a kind of protein inhibiting the growth of ice crystals and modifying the conformation of ice crystals,conferring freeze resistance to biology without temperature modulation. 抗冻蛋白是一类抑制冰晶生长和修饰冰晶形态的蛋白质,赋予无体温调节能力的生物在低温的环境里得以生存。
- The preparation of vinyl acetate -- acrylic acid copolymer emulsion is introduced, It uses for lamination of paper aluminum foil, and has high bond, rapid dry, good freeze resistance etc. 介绍了一种通过加入少量丙烯酸共聚改性的醋酸乙烯酯乳液的制备方法,该胶用于纸-铝箔的复合粘接,具有粘接力强、快干、抗冻性优良等特点。
- The tests of bonding power between polystyrene board and concrete, plastic expanded tube pull- out, compressibility, freeze resistance show the system property is reliable and high safe. 经聚苯板与混凝土粘合力、塑料胀管抗拔力、压缩率及抗冻试验表明该体系性能可靠、安全度高;
- The Comparison of Frozen Resistance of Several Tree Species of Ilex L. 几种冬青属植物抗冻能力比较。
- With a little genetic tinkering,fast? growing fish and freeze resistant fruits will help feed an overpopulated planet,but such hybrids could unwittingly wipe out the food chain. 有了稍经基因修复、快速养殖的鱼和防冻水果,人口过多的星球将获得足够的食物,不过,这些合成物可能不知不觉地彻底摧毁食物链。
- freeze resistance and anti-sliding 防冻抗滑
- With a little genetic tinkering, fast? growing fish and freeze resistant fruits will help feed an overpopulated planet, but such hybrids could unwittingly wipe out the food chain. 有了稍经基因修复、快速养殖的鱼和防冻水果,人口过多的星球将获得足够的食物,不过,这些合成物可能不知不觉地彻底摧毁食物链。
- Research Progress on the Mechanism and breeding of Freezing Resistance of Medicago sativa L. 苜蓿抗寒机理及抗寒育种研究进展。
- The conclusion shows the method fits and the mineral admixture can reduce the pore porosity of concrete and improve the compactibility and freezing resistance of concrete. 结论对于混凝土冬季施工更合适未用自然变低温养护的方法,掺入适量的掺合料能使混凝土孔隙率显著降低,使混凝土更加密实,提高混凝土的抗冻性。
- The P(VAc-MMA-AA) emulsion shows apparent improvement in freezing resistance,adhesive strength as well as water-resistance. 结果表明,所得改性 P( V Ac - M M A - A A) 共混乳液的耐水性、耐热性、耐寒性及粘结强度较 P V Ac 均聚物乳液均有明显改善。
- Thirdly , with analyzed the influence of the amount of adding to flysh on the freezing resistance utilizing the test data,and obtained the curves. (3)利用试验数据分析粉煤灰渗入量对抗冻性的影响,得出影响情况曲线。
- The government has introduced a wage freeze. 政府已宣布要冻结工资。
- Some fruits don't freeze well at all. 有些水果根本就不能冷藏。
- These facts indicated that the development of freezing resistance of P. tomentosa cuttings induced by freezing acclimation required a certain temperature and duration. 反映了毛白杨幼苗抗冻性的诱导与发育需要一定的温度和锻炼时间。
- Shall I put some anti- freeze in the radiator? 要不要在散热器里注入一些防冻剂?
- Through a great deal of experiments,the durability of HPC with artificial sand are studied systematically.Impermeability,freezing resistance and chloride ion diffusion are tested. 通过大量试验,系统研究了人工砂高性能混凝土的耐久性,对抗渗性、抗冻性、氯离子扩散系数等项目进行了测试。
- She won't freeze you out if you call on her. 你如果去拜访她,她不会把你拒之门外的。
- The retired workers demanded a freeze on prices. 退休工人要求冻结物价。