无变化的

Only in the frictionless vacuum of a nonexistent abstract world can movement or change occur without that abrasive friction of conflict.

仅仅在一个不存在的无磨擦真空的抽象世界里，运动或变化才不会发生粗糙的磨擦和冲突。

The resonant flow was researched in this paper, which is an incompressible, inviscid fluid with surface tension and different variational bottoms; the effects of different variational walls on the nonlinear surface waves were analyzed.

本文通过对具有表面张力的、不可压缩、无粘性流体流过不同壁面时的共振流动进行研究，分析了壁面变化对非线性表面波的影响。

The change of external support diameters have no significant effects on development of internode, blade, petiole and tendril.

外界支持物直径的变化对节间、叶片、叶柄以及卷须的发育时间进程无显著影响，但节间、叶片、叶柄及卷须的发育时间并不同步。

Objective To compare masticatory efficacy between children with and without caries, and to explore the impact of dental canes on children' a masticatory efficacy and body growth.

目的 比较患龋儿童与无龋儿童咀嚼效能之间的差异和龋病充填治疗前后咀嚼效能的变化，探讨龋齿对儿童咀嚼效能及生长发育的影响。

Each batch was weighed prior to and after drying to confirm that the mass change was about 9%(representing the difference in mass between the monohydrate and anhydrous form).

每批是权衡之前及之后干燥，以证实其符合质量的变化是约9％（代表不同的群众之间的水合物和无水形式）。

The heart rate, respiration, blood pressure and peripheral oxygen saturation (SpO2) of pre-anesthesia, post-anesthesia, during operation and after analepsia in every group were detected. The narcotism was evaluated by Ramsaymin grading method and the related adverse reactions such as cough, restlessness, harmful memory, and abdominal pain after operation were recorded.

选取在兰州大学第一医院普外二科ERCP诊疗中心行治疗性ERCP患者1 660例，分为静脉镇静、镇痛组（n=800）和常规镇静、镇痛组（n=860），观察各组患者麻醉前、麻醉后、术中、麻醉清醒后的心率、血压、呼吸和血氧饱和度的变化，并应用Ramsaymin分级法评估麻醉状态，记录患者术中呛咳、躁动、患者对手术过程有无不良记忆、术后腹痛等相关不良反应的发生。

Chronic Hepatitis B is a frequent infectious disease due to HBV clinic, mostly is liver of inflammation and histology and biochemistry, with unconventionality symptom continuous preponderate over six months, state of an illness without looking up or liver have activity variety of inflammation.

慢性乙型肝炎是由乙型肝炎病毒引起的临床上常见传染病，主要是指肝脏的炎症、组织学、生物化学异常征象持续超过6个月，病情无好转或肝内有活动性炎症变化者。把中医辩证和现代检测指标相结合进行研究的报道还不多见。

The research results showed that the "White" was on the first place with respect to the repeat rate and the "Black" took the second place in the color changes issued in the past ten years, proving the popularity of the achromatic colors.

研究结果发现在近10 年内所公布的色彩变化情形方面，以白色出现的次数比最高，黑色次之，显示出无彩色系的高流行性。

The forth part presents the experiments on fire area resistance and retroversion of fire smoke by using integrative fire simulation system of mine laneway network, with the results compared with the simulative numerical value, and the part also brings forward a new conception named fire area resistance which reflects character of fire resistance of mine laneway network. A general dimensionless calculation formula is deduced which presents the rule of smoke retroversion distance when fire occurs.

第四部分运用井巷网络火灾综合模拟实验系统进行了火区阻力和巷道火灾烟流滚退的实验研究，并与数值模拟结果进行了对比，提出了反映井巷网络火灾阻力特性的火区阻力新概念，推导出巷道火灾时期表征烟流滚退距离变化规律的通用无因次计算公式。

First observation of the essential oil of UVA (320-400nm) absorption, taking nine more before the absorption of essential oils and nine of the past record or doubt further analysis of essential oils, UVA nine large oil absorption of the former are: cinnamon, pheasant pepper, sweet orange, lemon, basil, grapefruit, bluegrass rock, roses, dill, 9 kinds of essential oils may be phototoxic as follows: orange blossom, bergamot, fennel, lemon grass, red mandarin, citronella oil, ginger oil, Australia sandalwood oil, lime; E.

首先观察精油的UVA(320-400nm)吸收度，取前九名有较大吸收之精油及九种过往记载或存疑之精油进一步分析，UVA较大吸收度之前九名精油分别为：肉桂、山鸡椒、甜橙、柠檬、罗勒、葡萄柚、岩兰草、玫瑰、莳萝，九种可能光毒精油为：橙花、佛手柑、茴香、柠檬草、红柑、香茅油、姜油、澳洲檀香油、莱姆；大肠杆菌抑菌圈变化中，柠檬、红柑及葡萄柚精油有明显的扩大现象；pUC119 DNA电泳结果，不同精油於电泳模式中，随UVA照光能量增加产生不等断裂情形，除玫瑰精油无影响，其余精油在UVA照光能量增加下皆有不等的DNA断裂情形发生，须再进一步试验。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。