The hydrogenation can be controlled to produce any degree of hardness desired in the product.为了生产所需要的任何硬度的产品,可对氢作用加以控制.Its hydrogenation activity in aromatics saturation and ring opening activity were investigated.芳烃加氢饱和...
Optionally, the purified diisobutylene may be hydrogenated to isooctane hydrogenation catalyst.任选的是, 可用加氢催化剂将纯化的二聚异丁烯加氢生成异辛烷.It is infrequence in China that the weld high - temperature high - pressure hydrogenation pipe ...
1.5 million cubic metres of earth were moved.共搬运土方150万立方米。He was stripped of his Olympic Hundred Metres gold medal after testing positive for steroids.类固醇检测呈阳性后，他的奥运百米金牌被收回。1.5 billion cubic metres of earth were/was move...
He leaned back in the swivel chair and locked his fingers behind his head...他仰靠在转椅上，十指交叉枕在脑后。Hoses - Three 6 foot color - coded hoses with female threaded swivel couplings.三条6英尺长彩色软管,带内螺纹旋转接头.The practical side - swivel ...