如果他的假设正确，则在1918年冬天爆发的第二波流感变得更加致命的原因很可能不是因为病毒的演变而是因为细菌感染在冬季更加常见。
If he's right, it is possible the second, winter wave of 1918 flu was more deadly not because of viral evolution but because bacterial infections are more common in winter.
漂在水面上的软木塞没有随波流走。相反，它随波上下浮动。
A cork floating on water is not swept along with the water. Rather, it moves up and down with the wave motion.
在庆典结束时，人们把竹枝丢到河里让它们随波流走，这样会把厄运一起带走。
At the end of the festival, the branches are thrown into a river, thus taking bad luck away.
介绍超声波流量计与物位计的声学原理。
The acoustic principle of detecting flowrate and the level of material by ultrasonic is introduced.
文章报导了一种新型高精度超声波流量计的系统设计。
This article describes the design of a high precision ultrasonic flowmeter.
超声波流量计在大管径天然气计量中具有突出的优点。
There is obvious advantage of the ultrasonic flow meter for the metering on the large diameter gas pipeline.
该方法已应用在超声波流量计中，收到了很好的效果。
The method in this paper is used by the ultrasonic flowmeter and a very good effect has been obtained.
能量变化的实质是，风场的时变性引起了波流相互作用。
The cause of the packet energy variation is wave-flow interaction produced by temporal variation of the wind.
论文研究铰接系泊塔-油轮系统波流联合作用下的动力响应。
The paper studied the dynamic response of an ALT-Tanker system exposed to the wave and current.
考虑流及波流联合作用，研究了深水套管的涡激非线性振动。
The vortex_induced nonlinear vibration of casing pipes in the deep water was studied considering the loads of current and combined wave_current.
本文讨论了时差法成品油超声波流量计的基本原理、优缺点等。
In this paper, the principle of transit-time differential method of ultrasonic flow measurement is introduced along with the discussion of its advantages and disadvantages.
本文研究了波流相互作用情形下波浪对水平流速沿垂向分布的影响。
The effect of wave on vertical distribution of horizontal flow velocity under the interaction of current flow and wave is studied.
钢管桩嵌固深度和波流要素是决定钢套箱受力状况的两个主要因素。
The embed depth and wave-stream elements of steel pipe piles are two main factors determining the bearing conditions of steel boxed cofferdam.
在平衡电路中，节点处奇次谐波流过差分路径。偶次谐波流过共模路径。
In any balanced circuit, odd harmonics circulate in a differential path, while even harmonics flow in a common-mode path.
研究了复杂可编程逻辑器件(CPLD)在超声波流量测量系统中的应用。
The application of CPLD (complex programmable logic device) in ultrasonic flow measurement system is researched.
微波流化床是结合了微波的加热特点和流化床的特性而设计的新型流化床。
Microwave fluidized bed is a new type of fluidized bed, which is a combination of microwave heating characteristics and the characteristics of fluidized bed.
阐述了天然气超声波流量计的特点和待解决的问题，分析了实流测试的结果。
The characteristics of natural gas ultrasonic flowmeter and the problems to be in need of solution are described, and the result of practical flow measurement is analyzed.
通过数值模拟和实验显示的方法对驻定在高速飞行体上斜爆轰波流场进行研究。
The oblique detonation stabilized on a hypervelocity projectile was researched by numerical simulations and experimental visualizations.
论文根据时差法超声波流量计的测量原理，设计了一款超声波流量计专用芯片。
In the thesis, an ASIC for ultrasonic flowmeter is designed based on the principle of time difference.
通过研究大量的资料，提出了以DSP为核心的时差法超声波流量计测控模块。
By researching on plenty of data, we put forward a DSP-core ultrasonic flowmeter's measurement and control module with Time-difference method.
在庆典结束时，人们把竹枝丢到河里让它们随波流走，这样会把厄运一起带走。
At the end of the festival, the branches are thrown4 into a river to be carried away, 5 thus taking bad luck along with them.
应用ANSYS软件对波流极值载荷作用下的深水钻井隔水管进行了非线性分析。
Drilling riser in deepwater, which was often acted on by extreme load of wave and current, was analyzed by ANSYS.
本文主要对波流作用下悬浮隧道的响应问题进行了研究，研究内容包括两个部分。
In this dissertation the main study aimed at the interaction of the wave-current effect and the SFT. The contents of the study consist of two parts.
为了计算波流共同作用下含沙量沿垂线的分布，建立了沿垂线分布的泥沙扩散系数模型。
To calculate distribution of sediment concentration in vertical under wave and current, a model of silt diffusion coefficient distribution in vertical is set up.
小管径频差法超声波流量计的测量精度受各种因素的影响，因而获得较高精度比较困难。
The precision of the ultrasonic flowmeter with small tube diameter and frequency difference method is affected by several factors, so to gain more accuracy is difficult.
在冬季的洋流、涌浪以及热带风暴和内波流作用下钻井船有能力保持位置不动是很有必要的。
It is necessary that drilling vessel is capable of standing still under the action of ocean current wave surge tropical storm and internal wave current in winter.
本文阐述了超声波流量计常用的时差法、多普勒法的测流原理，以及超声波流量计的分类。
This paper explained the commonly used principle of ultrasonic flow meter: time-difference method and Doppler method and introduced the classification of the ultrasonic flow meter.
本文阐述了超声波流量计常用的时差法、多普勒法的测流原理，以及超声波流量计的分类。
This paper explained the commonly used principle of ultrasonic flow meter: time-difference method and Doppler method and introduced the classification of the ultrasonic flow meter.
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