患者控制饮食的比例在干预后先增加后减少，但无统计学意义；
The proportion of dietary control decreased after a little increase, but not statistically significant;
灌木层、草本层地下部分与地上部分的比值随海拔的升高均呈先增加后减少的趋势。
The ratio between underground biomass and aboveground biomass of shrub and herb layer increases first, and then decreases with the rising of elevation.
结果表明，随等温温度的升高，贝氏体、残余奥氏体的量以及残余奥氏体中碳浓度先增加后减少。
The results show that, with the increase of holding temperature, the amount of bainite and retained austenite, the carbon concentration in retained austenite first increases and then decreases.
研究表明，在MJO对流主体自西向东传播的过程中，华西地区的秋季降水量呈先增加后减少的趋势。
The results show that autumn rainfall patterns change from enhanced to suppressed in west China when the main MJO convective body propagating from west to east.
在萧条期间(正确地)任由赤字增加后，它比其他国家先一步开始计划减少赤字。
After having (correctly) allowed its deficit to grow during the recession it has started sooner than other countries on a plan to reduce it.
研究表明：随着扩链反应时间的增加，产物相对分子质量随之增大，但是破乳效果随反应时间的增加呈先增大后减少的趋势。
It is shown that while the chain extending reaction time is increased, the demulsifying effect of the products increases at first and then decreases a certain period later.
轴力随着深度先稍微增加，后逐渐减少，并且在岩层中减少的速度远比砂土中快。
The shaft axial force first increases slightly with depth then decreases sharply, and the rate of decrease in rock is greater than that in sand and soil.
温室内大叶黄杨的生物量随BGA用量的增加先增加，后减小，耗水强度线性减少；
The biomass of Euonymus japnicus was increased first, then decreased with increase of BGA dosage, and the water consuming intensity was increased all the while in greenhouse.
室温和高温拉伸强度随锻造火次的增加呈现先减少后增加的趋势，塑性则先增加后减小。
At room temperature and high temperature the tensile strength of the forging decreases firstly and then increases while the ductility changes on the contrary.
室温和高温拉伸强度随锻造火次的增加呈现先减少后增加的趋势，塑性则先增加后减小。
At room temperature and high temperature the tensile strength of the forging decreases firstly and then increases while the ductility changes on the contrary.
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