A、同一支路的相邻两桥臂
B、同一桥臂上
C、相对的两个桥臂
D、都可以
A、1.2 /0.5 千克/伏
B、0.3/0.1 千克/伏
C、1.5/0.1 千克/伏
D、1.5/0.6 千克/伏
A、与梁截面高度的立方成正比,与梁的长度成反比
B、与梁截面高度的立方成反比,与梁的长度成正比
C、与梁截面高度的立方成正比,与梁的长度也成正比
D、与梁截面高度的立方成反比,与梁的长度也成反比
A、挠度为零,转角为零
B、挠度不为零,转角不为零
C、挠度为零,转角不为零
D、挠度不为零,转角为零
悬臂梁的弯矩图如图所示,则梁的FS图形状为( )。
A、矩形
B、三角形
C、梯形
D、零线(即各横截面上剪力均为零)
A、图(a)、(c)正确
B、图(b)、(c)正确
C、图(c)、(d)正确
D、图(a)、(b)正确
这是一篇有关应变传感器的新闻报道,请将划线部分的单词或结构翻译为汉语: Physicists Have Created the Most Sensitive Strain Sensor Ever Made TOPICS: Biotechnology,Materials Science,University Of Sussex By UNIVERSITY OF SUSSEX JUNE 4, 2020 The sensor, developed by the Materials Physics Group at the University of Sussex, can stretch up to 80 times higher strain than ❶strain gauges currently on the market and show resistance changes 100 times higher than the most sensitive materials in research development. The research team believes the sensors could bring new levels of sensitivity to ❷wearable tech measuring patients’ vital signs and to systems monitoring buildings and bridges’ structural integrity. Marcus O’Mara, from the School of Mathematical and Physical Sciences at the University of Sussex, said: “The next wave of ❸strain sensing technology uses elastic materials like rubber imbued with conductive materials such as ❹graphene or silver nanoparticles, and has been in development for over a decade now. “We believe these sensors are a big step forward. When compared to both linear and non-linear strain sensors referenced in the scientific literature, our sensors exhibit ❺the largest absolute change in resistance ever reported.”
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