Suit for reflow and wave flow solder.

适应再流焊与波峰焊。

youdao

The vortices in the vortex wave flow have particular moving structure, they develop downstream first, stay at the point for a short time, then move upstream.

涡旋波流场中旋涡有其独特的运动规律——先向下游移动，停留很短的时间后，然后向上游移动。

youdao

Venant's differential equations. The general analytical solutions of 1st and 2nd approximations have been given for one directional wave flow which propagates into the steady flow region.

对向定常流区推进的单向波问题给出了解的一级近似和二级近似的普遍表示式；

youdao

BEIJING U.S. investors warmed up to the first initial public offering by a Chinese company in the U.S. in eight months, an initial test of demand in a market where the once-regular flow of Chinese firms has given way to a wave of departures.

WSJ: After Low Pricing, China's YY Gains on Nasdaq