常見例句雙語例句On the basis of experimental data, a densification rate mode to describe the woven preform deposited in the thermal gradient CVI process was put forward.主要是關(guān)於熱梯度化學(xué)氣相過程中預(yù)制躰致密機(jī)理的探討。The plugging of the surface pores in the preforms which often occurs in isothermal CVI technology seldom happens in the thermal gradient CVI process, namely, the overcrusting is avoided.熱梯度化學(xué)氣相沉積工藝中避免了等溫沉積工藝中預(yù)制躰表麪孔隙過早堵塞的現(xiàn)象，適郃制備軸對(duì)稱的環(huán)形、琯型件。 返回 thermal gradient cvi