英汉例句

• the modelling way of rotor and pump body of roots pump are introduced in this paper. an overview of the application of solid modelling in the roots pump design is made and a design example is given.

  罗茨泵是常用的真空获得设备之一．其转子具有较复杂的截面型线，现有设计多采用人工计算和绘图的方式，这种方法的设计强度高、效率低。

• as the roots pump is a non-vacuum inside the compression, the compression ratio is usually very low, so high, medium and vacuum pumps need to pump before.

  由于罗茨泵是一种无内压缩的真空泵，通常压缩比很低，故高、中真空泵需要前级泵。

• in this paper, a new deduction on the theoretical linear formula and the practical one of the involute, linear roots pump motor was made.

  本文对渐开线型线罗茨泵转子的理论型线、实际型线公式做了新的推导。

• in this paper, the claw-type pump is compared with the roots pump and the vane pump. it is indicated …

  本文对爪型泵同罗茨泵和叶片泵进行比较，表明爪型泵是无油系统的理想抽气设备。

• establishing the foundation to improve the rotor shape parameter dramatically, realizing the roots pump series design and production, sufficing the condition of the agile manufacturing technology.

  为不断完善转子型线参数，实现罗茨泵系列化设计、生产，满足敏捷制造技术需要奠定基础。

• helical roots pump has great improvements on the face of stabilizing pressure pulse quality of passing cut sensitivity medium, reducing noises and vibration, avoiding vapor fret etc.

  螺旋式罗茨泵在稳定过流剪切敏感介质压力脉动质量，减少噪音、振动，避免气蚀等方面有较大改善。