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The effect of the catalysts, e.g., concd. sulfuric acid, p-toluenesulfonic acid, dodecylbenzenesul-fonic acid on the esterification of starch was studied with cassava starch as the raw material, acetic anhydride as the esterifying agent and acetic acid as
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摘要以木薯淀粉为原料，用醋酸酐为酯化剂，以乙酸为分散递质，探索了以浓硫酸、对甲基苯磺酸、十二烷基苯磺酸为催化剂对淀粉醋酯化反应的影响。 |
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The effect of the crack eccentricity ratio on the stress intensity factor and the ultimate tensile strength for cracked ductile plates was investigated in this paper.
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摘要疲劳裂纹对船舶结构强度具有不可忽视的削弱作用，在过去的研究中，主要从断裂力学的角度对疲劳裂纹应力场进行分析，而对于静态裂纹板的极限强度的探讨相对较少。 |
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The effect of the height between nozzles and ground plate, the distance between the nozzles, the inlet velocity of the nozzles, and the velocity of the cross flow on the flowfield structure were studied one by one.
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分别就喷嘴距地面高度、喷嘴间距、喷嘴出口速度、横向流等，对喷射垂直撞击平板流场的影响，逐一讨论。 |
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The effect of the inlet pressure on the performance of the vortex tuba which was designed by author was investigated by experiment with air as medium.
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摘要采用自行设计的涡流管，并以空气作为工作介质，通过实验研究了在保持膨胀比不变的情况下，不同进口压力对涡流管性能的影响。 |
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The effect of the pain-killer will wear off in three hours.
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这止痛片的效果只有三个小时。 |
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The effect of the recessing on the strength and stress distribution of adhesively bonded single-lap joints is discussed.
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摘要研究单搭接接头胶缝中预留间隙对接头拉剪强度和应力分布的影响。 |
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The effect of the rise of ground water level was simulated by increasing the mass density of pore water in the soil elements between the initial and targeted ground water levels.
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通过逐步改变初始和终止地下水位间土单元中孔隙水的密度模拟地下水位上升的效应。 |
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The effect of the structure of Austenite zone on the performance of gray iron welding joint is studied by means of thermo-simulated test in this paper.
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摘要采用热模拟试验方法探讨了灰口铸铁焊接接头热影响区的奥氏体区组织对接头性能的影响。 |
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The effect of the uniform curriculum is unclear.
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统一课程效果到底怎样目前还不好说。 |
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The effect of the water alkalinity and the water hardness on noodle quality was reviewed.
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摘要研究了水的碱度、硬度对面条品质的影响。 |
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The effect of this great Invocation is universal or cosmic, and serves to link us up with that cosmic center of spiritual force from which all created beings have come.
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这种伟大符咒的效果是普遍和宇宙的，作为我们与精神力量的宇宙中心连接的媒介，所有的创造物都从那里而来。 |
