UC知道急急急！！！专业翻译，100分！！1
来源：百度知道 编辑：UC知道 时间：2024/06/25 03:27:38
是有关材料方面的专业
我先出20，如果合适我回追加100分，说话算数
2.3. Tensile testing
Firstly, quasi-static tests were carried out to evaluate static tensile properties of the 9% Ni steel
using a hydraulic servo-testing machine (Instron type 8516). Two levels of actuator velocity were
adopted: 0.5 and 200 mm/min corresponding to strain rates of 8.3]10~3 and 0.33 s ~1, respectively.
Secondly, in impact tests, the striker velocity was obtained by adding pneumatic air pressure
to the gravity force. For experiments at 77 K, a small reservoir was installed around the specimen,
and the liquid nitrogen was poured into the reservoir. After holding for 20 min at 77 K, the tests
were carried out. After tensile testing, the fracture surfaces of the broken specimens were examined
with a SEM and an optical microscope.
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2.3 。拉伸试验
首先，准静态试验进行了评价静态拉伸性能的9 ％ Ni钢
采用液压伺服试验机（斯特朗输入8516 ） 。两个层次的动速度
通过： 0.5和200毫米/分钟的相应应变率为8.3 ] 10 〜 3县和0.33 〜 1 。
其次，在撞击试验，前锋速度得到增加气动空气压力
的严重性生效。实验在77钾，一个小水库周围安装标本，
和液氮被倒入水库。在举行了20分钟在77钾试验
进行。经过拉伸试验，断裂面的损坏标本检查
以扫描电镜和光学显微镜。
2.3. Tensile testing
Firstly, quasi-static tests were carried out to evaluate static tensile properties of the 9% Ni steel
using a hydraulic servo-testing machine (Instron type 8516). Two levels of actuator velocity were
adopted: 0.5 and 200 mm/min corresponding to strain rates of 8.3]10~3 and 0.33 s ~1, respectively.
Secondly, in impact tests, the striker velocity was obtained by adding pneumatic air pressure
to the gravity force. For experiments at 77 K, a small reservoir was installed around the specimen,
and the liquid nitrogen was poured into the reservoir. After holding for 20 min at 77 K, the tests
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