In- termolecular reactions were observed with the C—Pd bond formed by the C—H activation of the aromatic ring and the nitrile group.
当然，人们也观察到了通过芳香C—H键活化产生的芳基碳钯键与腈基的分子间反应。
The reactivity of tertiary and secondary C connected to the arene ring was increased obviously.
芳环的存在可以增加与其相连的仲碳和叔碳的反应活性。
Ring closing metathesis (RCM) of dienes to cycloalkene provides an important tool for C-C double bond formation catalyzed by metal carbene.
关环转换反应是形成碳碳双键的重要反应之一，即双烯化合物在金属碳烯催化下关环得到环烯类化合物。
The resistance of nitrided J55 casing to sulfide stress cracking (SSC) was studied by C-ring testing and three-point bending testing under different conditions.
用应力环腐蚀试验和三(四)点弯曲试验研究了某J 55(即石油套管)渗氮套管在不同试验条件下的腐蚀行为，并和未渗氮套管的抗腐蚀性进行了比较。
To solve the problem of leakage of reaction vessel, a new C-ring for the sealing of the reaction vessel is developed.
为解决反应釜密封泄漏问题，研制了新型类c形密封环。
Raman spectroscopy results showed that: the presence of electron withdrawing groups improved the bond energy of C-H in the benzene ring.
拉曼光谱分析结果证明：吸电子基团的存在使苯环上c -H的键能提高。
Hydraulic Brake Cylinder Rubber CUP, O-RING, Dust Boot, C. V. Boot, Disc Repqir Kit, Repair Kit and Brake Hoses.
汽车制动器密封件，传动轴防尘套，汽车制动器修理包及刹车软管。
Auto industry: steel ring, vehicle body, chasis, axle housing, oil tank, door, etc. C.
汽车行业：钢圈、车身、油箱、桥壳、底盘、车门等零件。
Auto industry: steel ring, vehicle body, chasis, axle housing, oil tank, door, etc. C.
汽车行业：钢圈、车身、油箱、桥壳、底盘、车门等零件。
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