The original seal structure and the improved seal structure of the double-leaf swing door at the outside end are described.
介绍了外端双扇摆门的原密封结构和改进后的密封结构，对比分析了硅橡胶条、尼龙毛刷和羊毛毛刷的密封性能。
Courses of Dalian Maple Leaf Middle school integrate with all English Canadian courses of senior high school's "double language, double degree".
枫叶初中课程与“双语双学历”的枫叶高中全英文加方课程对接。
Primary observation to T2-generation showed that double mutant plant had obvious dwarf phenotype, but had no defect in leaf trichome and vasculature.
对T 2代双突变体植株表型初步观察显示，植株有明显矮化现象，但维管束和叶毛的发育基本正常。
It can be lifted in single leaf or double leaves, and operated smoothly and freely. It wears well.
单扇提拉或双扇提拉均可，操作灵活自如，经久耐用。
Behind its blank facades sits a double-height wall covered in gold leaf, oriented to reflect the south light that streams in through a high window.
在其空白的立面后是覆盖着金箔的双层高的墙壁，以反射从高窗进入的南向光。
In the model, the leaf area index (LAI), crop coefficients, and root penetration and distribution were simulated for the winter wheat and summer corn double cropping system.
模型对冬小麦—夏玉米轮作体系作物叶面积指数、作物系数、根系生长与分布进行了模拟。
Wire-o binding a method of loose-leaf binding in which a continuous double loop of wire runs through punched slots along the binding side of a booklet.
双线圈装用连续的双圈铁丝绕穿过打在书本订口的方孔而成的一种活页装。
Wire-o binding a method of loose-leaf binding in which a continuous double loop of wire runs through punched slots along the binding side of a booklet.
双线圈装用连续的双圈铁丝绕穿过打在书本订口的方孔而成的一种活页装。
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