以下为句子列表：
英文: The seals of tubing spool and tubing hanger are classified as two types:vertical rubber seal and tapper metal seal.Users can select one of them upon their requirement.
中文: 油管四通和油管悬挂器分两种密封结构形式，一种是直座式橡胶密封，一种是锥座式金属硬密封，可根据不同需要确定其选用形式。
更详细...
英文: An Research of New Impact Tapper Based on Stress Wavetheory
中文: 基于应力波理论的新型冲击攻丝机的研究
更详细...
英文: The new cryptosystem overcomes the weakness of Goldwasser's probabilistic encryption,which may be attacked by active tapper and has no digital signatULre. The new cryptosystem makes probabilistic encryption more perfect.
中文: 新体制克服了Goldwasser的概率加密体制可被系统内主动窃听者破译和不具备数字签名的弱点，使概率加密体制更加完善。
更详细...
|
