Proprietary mineral blend added to create Kirkland Signature’s pure taste. Bottled using state-of-the-art purification, filtration and reverse osmosis technologies with each bottle undergoing automated digital imaging inspection. Utilization of food grade recycled PET (rPET) where feasible. Our bottle, cap and printed film are 100% recyclable.

Kirkland Signature Purified Drinking Water - Is It Worth IT? Don't SLEEP on this KIRKLAND signature bottled water! Perfect size for an on-the-go lifestyle, school lunches, sports, events and entertaining.

Kirkland Signature bottled water’s pure, fresh taste, high quality and value makes staying refreshed and hydrated easy! Our water is bottled with state-of-the-art purification, filtration and reverse osmosis technologies with the highest quality certifications in the industry.

KswTr_T 为温度对 IGBT 开关损耗影响的温度系数； KswD_T 为温度对快恢复二极管开关损耗影响的温度 系数。 最后需要特别指出，对于不同的栅极驱动电 阻，单脉冲开关损耗 Eon、Eoff 和 Err 有一定的差异， 需要从损耗曲线上合理选择。

Shop Costco.com's selection of bottled water. Find artesian water, sparkling water & more. Enjoy low warehouse prices on top brands.

Stay hydrated with Kirkland Signature Purified Water, enriched with minerals. Pack of 40 x 16.9 fl oz bottles.

Using the Instacart app or website, shop for products from your store of choice near you. Once you place your order, Instacart will connect you with a personal shopper in your area to shop and deliver your order. Contactless delivery is available with our "Leave at my door" option.

2013年11月24日 · 2本文针对采用IGBT的变 频器，提出了一种式中，M为PWM的调制度（相电压峰值除以1/2IGBT 模块损耗计算的实用方法，并考虑了温度对桥臂直流电压）。 在恒定的频率下，占 空比可以简化各种损耗带来的影响，利用热阻等效电路，推导得表示为相角θ的 函数。 出了散热系统各点温度的实用计算公式，在此基础根据式（1）和式（2）， 经推导，输出正弦波电上设计了一套采用强迫风冷的散热系统。 流时的IGBT和 快恢复二极管的通态损耗可以分别用下面的 …

Get Costco Kirkland Signature Premium Bottled Drinking Water, 40 x 16.9 oz delivered to you in as fast as 1 hour with Instacart same-day delivery or curbside pickup. Start shopping online now with Instacart to get your favorite Costco products on-demand.

这里 Twtr 是风轮的转矩 ,J wtr 是风轮的转动惯量 ,Dwtr 是低 速轴的阻尼系数 , Kswtr 是低速轴的刚度系数 ,J wheel1 是低速轴齿 轮箱侧的转动惯量 ,J wheel2 是高速轴齿轮箱侧的转动惯量 ,