A***o Oct 16, 2024 Good Reviews with 3 repeated content are hidden P1-25/I2/SVB/HI11 Electrical Equipment Frequency converter Good Fiber Optic Photoelectric Optical Sensors OBT500-18GM60-E5-V1 Good R88M-1M75030T-S2 AC SERVO MOTOR
摘要: 目的:总结近10年来对混合痔术后肛缘水肿的防治情况.结论:术前的精心准备,术中熟练的手术技巧,良好的手术方式,术后积极及时处理并发症,混合痔术后肛缘水肿是可以避免或减轻的.因此,针对术后肛缘水肿的防治情况,应以预防为主,积极治疗.关键词:
ABB3P塑壳断路器S1N125空气开关R16A/40A50A空开80A100A125A安FFC ¥252 【原装全新正品】嘉准传感器F&C光电开关 FQ01-N 正品质量保 ¥247 AB限位开关802T-AP/802T-AT/802T-A4PV/802T-A4PY58/802R-DC-D-AP ¥550 DUNGS冬斯MB-DLE410 412 415 420B01S20电路板MB-ZRDLE407B01S50 ¥220 SMC原装正品...
Delivery: they delivered the package to the wrong address. after a week and a half. hear the person they delivered the package to and say they have received my package. and that they have traveled far away. 2 weeks after the package disappeared, the person who delivered the package hears ...
Aim To investigate the human impact on eastern Mediterranean ecosystems in a subhumid to semi-arid region of the Near East. D Kaniewski,VD Laet,E Paulissen,... - 《Journal of Biogeography》 被引量: 54发表: 2007年 Human–environment interactions in mountain rainforests: archaeobotanical evidence...
百度试题 题目钴-60治疗机放射源的平均能量是() A.1.17MevB.1.25MevC.1.33MevD.1.44MevE.以上都不是相关知识点: 试题来源: 解析 C 反馈 收藏
钴-60r线的平均能量为()。A、0.31MevB、1.17MevC、1.33MevD、1.25MevE、0.94Mev的正确答案和题目解析
[单选] 钴-60γ线平均能量为()A . A.1.17MeVB . B.1.25MeVC . C.1.33MeVD . D.2.5MeVE . E.0.6MeV
AB两点间的电势差为:UAB=Ed=ELcosθ=600V/m×0.5m×cos60°=150V, AB间的电势差为:UAB=150V; 故选:A. 点评本题首先要想到匀强电场中电势差与场强的关系式U=Ed,其次要正确理解d的含义:两点沿电场方向的距离. 练习册系列答案 寒假作业大众文艺出版社系列答案 ...
由图的斜率知,加速度的大小为 a=△v△t△v△t=0.80m/s2 ③将图线延长与纵轴相交,交点的速度是0.080m/s,此速度对应零时刻的速度,所以它的物理意义是O点速度. 故答案为::①0.161,0.401, ②0.80; ③0.080,O点速度; 点评本题考查了打点计时器的应用以及根据纸带求物体运动的速度、加速度等问题,要熟练掌握...