Of course, what you eat takes center stage: Choose fruits, vegetables and lean proteins; opt for low-fat dairy and whole-grain products; up your fiber intake; limit sugar; and drink lots of water. 当然,吃什么食物最为关键:选择水果,蔬菜和低蛋白;选择低脂肪奶制品和全谷物食品;提高你的纤维摄入量;限制糖,并且大量喝水。
In Chicago, prices for lean hogs and pork bellies traded sharply lower after initially falling by their daily trading limit amid talk of US trade restrictions with Mexico. 在芝加哥,瘦肉猪和猪腩期货的交易价格大幅走低。此前在开盘之时,美国将限制与墨西哥贸易的传言,导致这两种期货的价格一度跌停。
Influence of Cold Plasma Gasoline Reforming on Lean Burn Limit 低温等离子体汽油重整对稀燃极限影响的实验
Stratified combustion can extend the lean combustion limit to very lean region. 分层燃烧可使稀燃极限延伸到很小的当量比。
The Effect of Flow Field and Fuel Spray of Combustor with Swirl Cup on Lean Blowout Limit at Idle Condition 旋流杯燃烧室头部流场与喷雾对贫油熄火的影响
The results show that wide spark plug gap and improved electrode shape can enhance ignition capability and the effect of octane number on lean flammability limit is not obvious. 实验结果表明,采用宽间隙火花塞,改进电极形状,可以在一定范围内扩大着火稀限,而辛烷值对着火稀限的影响不明显。
In addition, the influence of the spark energy, the gas stream speed and the electrode distance on the lean ignition limit of the gasoline-air mixtures by an automobile ignition coil was determined. 此外,利用汽车发动机点火系统测试了电火花能量、来流速度、电极距离等因素对汽油-空气预混气的着火稀限的影响。
Investigation of Super-High Energy Discharge on Extending Lean Flammability Limit of Homogeneous Charge 超高能放电对扩大均质混合气稀燃极限的研究
Tumble motion, combining fuel injection strategy, can achieve lean combustion and extend lean combustion limit to 21-22, which is helpful to reduce NOx emissions. It can save fuel for 12 percent. 可以实现稀薄燃烧,节油率为12%左右,稀燃极限为21-22;
By using two-stage fuel injection and variable induction technology to form a quasi-homogeneous lean mixture, the combustion process is improved with lean burn air fuel ratio limit extended and NOx emission lowered. 应用二次喷油及可变进气技术,形成准均质稀混合气,改善了燃烧过程,扩大了发动机稀燃极限,降低了NOx排放量。
Using a small flow number atomizer may obviously improve the lean ignition limit of the high density fuel, but the ignition velocity-pressure limit and the rich ignition limit are shrunk. 使用小流量数喷嘴可显著改善大比重油的贫油点火性能,但点火的压力-速度边界和富油点火边界缩小了。
Judgement of Lean Burn Limit for SI Engine Using LPG LPG在点燃式发动机上的稀限判别
Based on electronic low-pressure gaseous injection, the comparing analysis of several methods for the criterions of lean burn limit in an LPG engine is presented. 分析了电控低压气体喷射的LPG在小型点燃式发动机上应用时,有关稀限判据参数的选取和依据。
The result of MBR and flame speed indicates that when the proportion of reforming is increased, the flame speed is gradually increasing, so the stability of combustion is enhanced, and the lean limit is also increased. 通过对MBR、ST的分析表明,随着重整比例的增大,发动机的燃烧速度逐渐增大,因此发动机的燃烧稳定性得到增强,发动机稀燃极限随之提高。
The effects of heat regenerator on combustion temperature, lean limit and pollution emission were experimentally studied. 实验研究了回热对燃烧温度、贫燃料燃烧极限和污染物排放的影响。
It can be used to implement steady combustion with fuel of low or extremely low calorific value. The porous media burner has advantages of stable combustion, higher flame speed, wider lean flammability limit and less pollutants emission. 它能够实现低热值,甚至超低热值气体的稳定燃烧,具有燃烧稳定、燃烧速率高、可燃极限宽和污染物排放低等显著优点。
The temperature profiles in the burner, the lean flammable limit and maximum half cycle are predicted by a piecewise linear function, which is applied to inert porous medium combustors with reciprocating flow in the absence of heat loss to the surroundings. 利用分段线性函数,构建出燃烧器内的温度分布曲线、贫可燃极限和最大半周期。该解适用于绝热条件下往复式惰性多孔介质燃烧器。