Under the normal pressure sintering condition, the superfine, high density's tetrag-onal zirconia polycrystalline ceramics were prepared by means of doping 3mol% Y_2O_3 and othertrace oxides which act as the grain stabilizing agent and the grain growing inhibitor.
本文在常压固态烧结条件下,通过掺加3mol%Y_2O_3和微量氧化物作为晶粒稳定剂和晶粒生长阻碍剂制备出超细化,高密度的四方ZrO_2多晶陶瓷。
The paper discussed the theory of the yield management and its application in hotels, Also it discusses the obstacles of the use of the yield management in the Chinese hotels.
文章探讨了收益管理的理论及在饭店业中的应用,并初步分析了收益管理在中国饭店业实施过程中存在的阻碍。
With the globalization of leisure consuming and leisure activities,the program aims at female leisure tourism,evaluates the obstacle elements of female leisure tourism in the objective and subjective environment,puts forward some treasures which can be taken by governmental management and tourism enterprises.
在当前消费休闲化与休闲社会化的全球发展趋势下,本课题选取女性休闲旅游者这一研究对象,评价主客观环境中所存在的女性休闲旅游阻碍因素,提出了政府管理和旅游企业层面上可以采取的措施,以期切实提高女性休闲旅游的比例和频率。
The act or an instance of hindering, obstructing, or impeding.
妨碍妨碍，阻碍或阻止的行为或事例
Something that hinders, obstructs, or impedes.
绊脚，障碍妨碍，阻碍或阻止的东西
the act of hindering or obstructing or impeding.
妨碍打扰阻碍的行为。
Something immaterial that obstructs or impedes:
非物质的妨碍或阻碍物。
perversion or obstruction of the course of justice
妨碍或阻碍司法公正
To retard or obstruct the progress of.
妨碍拖延或阻挡…的进程
deliberately obstruct or prevent(sth)
故意妨碍或阻止（某事物）
free from impediment or obstruction or hindrance.
不受妨碍或阻塞的，或清除了障碍的。
to hinder or prevent (the efforts, plans, or desires) of.
妨碍或阻止努力计划或要求。
One that opposes, stands in the way of, or holds up progress.
妨害物反对或阻碍进步的事物
put Back; place Back
放回原处;拨回;延期;妨碍进展;回港;阻止
any mechanical force that tends to retard or oppose motion.
倾向于妨碍或阻滞运动的机械力量。
an unfortunate happening that hinders of impedes; something that is thwarting or frustrating.
起阻止阻碍作用的不幸的事；起妨碍或挫败作用的事。
ne impediatur officia
不妨碍公务（原则）
Sludge can also clog oil passages and prevent normal engine lubrication.
油泥还会阻塞油路，妨碍发动机的正常润滑工作。
cathodic protection parasites
妨碍阴极保护的物质
The heavy rain retarded our progress.
大雨妨碍了我们的进展。
Bad roads retarded the car.
不好的路妨碍车子通行。