Aggregate channels explained the asymmetry from the view of aggregate demand and aggregate supply, including the real balance effect, supply-side shocks and income transfers.

“总量效应”主要从总需求和总供给的角度来解释油价波动对经济的影响，主要包括“实际余额效应”、“供给冲击假说”和“收入转移假说”。

youdao

The premium Kindle Fire HD, with 32 GB storage and 8.9 inch screen, will have two Wi-Fi channels and two internal antennas for faster, smoother transfers.

FORBES: Amazon Kindles Tablet Price War With Revamped Range Of Tablets