This paper firstly analyzed current situation of agricultural technological innovation system in China and obstacles restricting agricultural enterprises to bec
<正>项目名称中电联鉴字[201 2]第1 94号■项目技术原理、功能及应用范围◎项目技术原理WH型全绝缘扁形换位铝导线是经绞合压型后的导线再包以多层绝缘薄膜和最外层薄膜带,该
<正>除颤仪作为急救设备,在《三甲评审》中要求完好率100%,其各项技术参数直接影响着危重病人的抢救。为了降低除颤仪的临床使用风险,保证患者的生命安全,各医院应该建立并完
本文叙述工厂锅炉房、冷冻机室、电气室等的换气设计要领和计算要领。
目的：探讨外固定支架治疗胫腓骨多段开放性粉碎性骨折的方法。方法：32例胫腓骨多段开放性粉碎性骨折应用小切口、有限内固定、结合外固定支架治疗。结果：32例均达到解剖复位,随
Using " chain-based and constant-based" two-step method,this paper measured Paasche net barter terms of trade index for SinoAustralian agricultural products fro
In a supply chain with a retailer confronted with financial constraints,impacts on profits of the supply chain can be alleviated by increasing the retailer’s e
Taking Environment and Plant Protection Institute in Chinese Academy of Tropical Agricultural Sciences as an example,it summarized major experience and practice
The data of this paper mainly include statistics,field survey data and MODIS remote sensing image data. This paper estimates the aboveground biomass of grasslan
目的：探讨手术麻醉对不同性格特征的学龄期儿童产生的心理影响及行为改变情况。方法：选择择期腺样体或扁桃体切除术患儿53例,ASAⅠ～Ⅱ级,年龄5～12岁。术前对所有患儿进行艾森克个