作者: 赵伟华 摘要: 一,播前种子处理为促进种子发芽,预防病虫害,播种前要进行种子处理,种子处理主要是指温汤浸种和种子消毒.温汤浸种可以使种子充分吸水,氧气容易透过种皮,有助于原生质的活动和种子贮存物质的转化与运输,促进种子在适温下快萌发,早出苗.温汤浸种的方法是:用种子量5~6倍的温水浸种,55℃水温保持20...
本实用新型公开了一种自缚式侧向靠枕,包括靠枕1,自缚带2,护垫3,靠枕1和护垫3均穿接在自缚带2上,靠枕1为填充物靠枕或充气气囊,自缚带2为具有松紧性的带子并设置有调节扣环2-1,自缚带2与一个橡胶缓冲层相连,橡胶缓冲层4设置在自缚带的内侧,所述橡胶缓冲层4的厚度为0.5毫米,还包括穿过橡胶缓冲层3和自缚带2的...
PURPOSE: To provide a pressurizing device for a stress cone, which is capable of keeping an interface pressure between the stress cone and a cable core in constant, by a method wherein pressure abutment between the stress cone and the cable core or especially sufficient pressure abutment betwee...
战后,朝鲜半岛化为美苏划定势力范围的地带.为在半岛扶植起一个亲美政权,杜鲁门政府自占领朝鲜半岛南部时起,便开始向南朝鲜提供大量援助.伴随冷战的爆发,尤其自朝鲜战争以来,美苏对朝鲜半岛的争夺加剧,韩国成为美国在东亚保卫自身实力与盟友安全的重要反共堡垒.对韩国的援助政策也因此受到冷战的影响,随不同时期美国全球战...
作者: 柏巧玲 摘要: 针灸治疗小儿腹泻30例报告柏巧玲100053中国中医研究院广安门医院小儿腹泻是夏季多发病,近年来笔者采用针灸疗法治疗30例患儿,疗效满意,现介绍如下.1临床资料30例中男18例,女12例.年龄最大5岁,最小1岁.共同特点是由于饮食不节,寒凉损伤脾胃功... DOI: CNKI:SUN:ZLYS.0.1994-06-043 年份:...
The arbitrariness of the linguistic sign is a key semiological concept.Saussure's Course in General Linguistics presented it,particularly in the context of the opposition between absolute and relative arbitrariness,as an irrational principle.The paper is an attempt to answer the questions of how exact...
PROBLEM TO BE SOLVED: To solve the problem of the irregular surfaces of a conventional rail in such a manner that the irregularities of the rail not only accumulate soil and sand and dust singly but also are a hindrance to the passage of a physically handicapped person and the aged although...
Improving the efficiency of organic Rankine cycle (ORC) is the ultimate goal of the researchers with thermodynamic background. As the "blood" of ORC, the working fluid plays a vital role to the improvement of the performance. The thermos-physical properties parameters, transport parameters and oth...