以下为句子列表：
英文: Dormancy for hard seeds is caused by impermeability to water and gas and mechanical constraint of the seed coat.
中文: 硬实种子种皮透水透气性差和对胚生长的机械限制，引起种子休眠。
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英文: The effect of admixture on impermeability of concrete in frigid zone was studied the results of the test meet the requirements of design and construction.
中文: 摘要主要研究了混凝土中掺入引气减水剂对混凝土抗渗性能的影响，并按选定配比以最佳掺入量掺入混凝土中进行抗渗试验，测试的结果满足设计和施工的要求。
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英文: The disproportionation reactor is a kind of hyˉdroforming plant with high temperature,high pressure,the impermeability of the reactor directly affects the safety operation of the whole set reactor.
中文: 歧化反应器属于高温、高压、临氢设备 ,其密封性能的好坏 ,将直接影响整个歧化装置的安全运行。
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英文: The concrete for face slab is designed to have an age of 8 days, the strength grade of C, the frost resistant grade of D00, and the impermeability grade of S. The single layer steel bar is arranged in the middle part of face slab and in the plinth.
中文: 面板混凝土设计采用8d龄期,其强度等级为C,抗渗等级S,抗冻等级D00,单层钢筋布置在面板的中间;
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英文: When added 0.% GCL-D,the water reducing ratio of concrete is 8.% as well as the compressive strength ratio of day and 8 day of harden concrete is % and %. The 8 days impermeability pressure ratio of harden mortar blended with GCL-D reaches 8%.
中文: 掺加0.%GCL-D的混凝土减水率为8.%, d和8d混凝土强度比分别达%和%,8d砂浆抗渗比达到8%。
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