In places, the water table is declining at a rate of a meter a year, necessitating the periodic deepening of wells and the use of ever-more-powerful pumps.
在一些地方,水位正以每年一米的速度下降,需要定期加深井并使用更强大的水泵。
AN MBAN would encompass a radius of about one meter, so it could use a much smaller battery.
MBAN覆盖半径一米左右的范围,因此它使用的电池可以小不少。
Each sub will have one or two pilots onboard who use pedals or some other propulsion system to guide their vessel across the 328-foot (100-meter) submerged racecourse the fastest.
每个潜艇都将有一两个驾驶员在艇上使用踏板或其他推动系统来引导他们的船最快地穿越水下328尺(100米)的比赛航程。
She advised his parents to use a special device called a peak flow meter.
VOA: special.2009.07.28
I cut it in half, I'll use some protractors and dividers and compasses, you can split the meter into any fraction you like.
把它切成两半,我用量角器,两脚规,还有圆规,你想把一米分成任意份数
Just like one second is some convention we use and one meter is some convention we use.
就像一秒是我们预先约定的,一米也是我们预先约定的
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