It is the rate of change, the sudden onset of the pressure change, that makes the sonic boom audible.
是变化的速率和发生的突然性使得音爆可以被听见。
Food, especially fatty foods, slows gastric emptying (and the rate of drug absorption), explaining why some drugs should be taken on an empty stomach when a rapid onset of action is desired.
食物，特别是脂类食物，延缓胃排空速度(从而也延缓药物吸收速度)，这也就是为何某些希望迅速奏效的药物宜空腹服用的原因。
If pollution continues to increase at the present rate, aerosols in the atmosphere will cause the onset of an ice age in about fifty years' time.
如果污染按目前的速度持续增加，大气中的悬浮物会导致未来五十年内一个冰河时代的开始。
Results 1 The onset constituent ratio and fatality rate of liver cirrhosis reposefully descend, but the in-patient quantity take on ascendance trend.
结果：1、十一年来新医大一附院消化科肝硬化的发病构成比及病死率平稳下降，但住院量有上升趋势。
The onset and rate of this decline tends to vary across cognitive domains, and some functions may be preferentially spared in patients with AD.
不同类型的认知功能损害发生和损害程度各异，而有些功能损害在AD患者中是很常见的。
Thermogravimetric analysis(TG), melt flow rate, and oxidation onset temperature(OOT) were employed to characterize the stability of PP containing the antioxidants.
分别采用热重分析、熔体流动速率和氧化开始温度等分析方法考察了其在聚丙烯（PP）中的稳定化作用。
The authors suggest that this effect is due to the change in the strain rate of crack tip metal thus altering the thermodynamics of crack onset and growth.
作者认为载荷频率的上述影响是因裂纹尖端的应变速率随载荷频率而变化，从而改变了裂纹起始与扩展的热力学条件。
Result the couch pad with proper stiffness can considerably reduce the peak and onset rate of landing impact load.
结果通过座垫整体刚度特性的良好设计，座垫能够显著降低冲击过载的峰值和增长率。
The onset number of angina pectoris, blood pressure, heart rate, amount of sublingual nitroglycerin and resting electrocardiogram(ECG)were observed.
观察心绞痛发作次数、血压、心率、硝酸甘油含服数量、静息心电图变化。
S. savings rate has increased to about 4% of GDP (from zero at the recession's onset), and China's current account surplus has fallen from 10% of GDP to about 6.5% of GDP.
美国人的储蓄已经增长到了GDP的4%(危机爆发之时这个数据为零)，而中国的经常账户余额从占gdp的10%下降到了6.5%。
Meanwhile, binary processing aid also showed effect on increasing the critical shear rate for the onset of sharkskin melt fracture.
同时复合加工助剂对改善鲨鱼皮熔体破裂也有一定的作用。
The mortality rate associated with septicemia was related with the hospital onset of infection, decrease of platelet, elevation of blood glucose and septic shock.
院内感染、血小板下降、血糖升高及休克增加了败血症患者病死率。
Its onset temperature of thermal decomposition is slightly lower than the cotton fiber's while its residue rate is a little higher.
通过热重分析法测试得出莲纤维的热分解过程与棉纤维的相似，其热分解温度略低于棉纤维，但残重率高于棉纤维。
Objective The aim of this study was to analyze the correlation between rapid increased heart rate at onset of electrocardiogram treadmill exercise test and coronary artery lesion.
目的探讨心电图平板运动试验早期心率的快速增加与冠状动脉（冠脉）病变的关系。
Conclusion: Because of occult onset, elaborative examination is essential for suspicious cases to elevate the early diagnostic rate of colorectal cancer in the elder.
结论：老年结直肠癌发病具有隐匿性，应对可疑病例进行详尽检查，提高老年结直肠癌的早期诊断率。
Fourth, there is the following factors in patients with high relapse rate after treatment, so be careful withdrawal more: after the age of onset were 1.30; 2.
第四，存在下面一些因素的患者，停药后复发率较高，因此停药更需慎重：1.30岁以后发病者；
Fourth, there is the following factors in patients with high relapse rate after treatment, so be careful withdrawal more: after the age of onset were 1.30; 2.
第四，存在下面一些因素的患者，停药后复发率较高，因此停药更需慎重：1.30岁以后发病者；
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