例句與造句

1. The research work focuses on the following four main investigations : 1 . theory of fluid system design for adjustable linear oil damper by use of dynamic mathematical models and dynamic - parameter - compensat ing method , the first research of this item has established the generalized optimiz - - ation mathematical model of the fluid system of an adjustable linear oil damper ; by use of the mechanical generalized optimization theory and platform , the first research has also made a multi - objective and overall - performance optimal design to the fluid system which gives the damper both the best damping performances and the best economic capacities ; by modeling the whole damper and analyzing it by numerical method , the second research of this item has solved the problem of the damper ' s dynamical damping characteristics calculation , simulation and analysis
   主要涉及以下四個方面的內(nèi)容： 1 、可調(diào)式線性油壓減振器阻尼系統(tǒng)的設計理論采用動態(tài)數(shù)學模型和動態(tài)參數(shù)補償?shù)姆椒▽烧{(diào)式線性油壓減振器的阻尼系統(tǒng)進行了廣義優(yōu)化設計建模；運用機械廣義優(yōu)化設計理論和平臺對可調(diào)式線性油壓減振器的阻尼系統(tǒng)進行了多目標、全性能的優(yōu)化，實現(xiàn)了其技術性能和經(jīng)濟性能的綜合優(yōu)化設計；通過對整個油壓減振器進行建模與數(shù)值分析，解決了工程上對多級擬合線性油壓減振器的阻尼性能進行求解、對其動態(tài)特性進行分析的難點。
2. It's difficult to find dynamical damper in a sentence. 用dynamical damper造句挺難的