The second mechanism, "Pull," also limits WIP by making the production velocity of the upstream process dependent on the downstream consumption velocity.
第二个机制——“拉动式”——通过依据下游消耗速度来确定上游工序的生产速度，这种机制也限制了在制品的数量。
We believe that a force of about one hundred pounds was needed to pull the string all the way back on a long bow.
我们认为，拉动长弓上的弓弦大约需要100磅的力。
And answered them, saying, Which of you shall have an ass or an ox fallen into a pit, and will not straightway pull him out on the Sabbath day?
便对他们说，你们中间谁有驴或有牛，在安息日掉在井里，不立时拉他上来呢。
Often you can "pull" a guideline from the rulers on the sides of page and place them where you want them.
通常你可以从页面旁的标尺上“拖拽”出一条辅助线，然后放置在需要的地方。
Preparation before working: observe whether the area is accord with requirements before working. Pull on parking brake after parking.
作业前的准备：作业前要观察场地是否符合要求。停车后要拉上驻车制动器。
After coupling quick disconnect coupling, pull on hose to insure that a proper connection is made before releasing hose.
当连接好快拆接口后，在放开软管前，应试拉软管以确保正确牢固。
A small pop to the bottom wing or a small push on the upper followed by a firm pull on the upper wing to position the kite as you see it here.
拉一点下翼或送一点上翼，紧接着果断有力地拉上翼，使风筝形成画面上这样的姿态。
He just felt a faint slackening of the pressure of the line and be commenced to pull on it gently with his right hand.
他仅仅感觉到钓索上的拉力微微减少了一些，就开始用右手轻轻朝里拉。
That system, combined with the tongue loops, leaves almost no room to stick a finger in there to pull on a lace for tightening or adjustment.
这种系带方式再加上鞋舌环，导致几乎没有空间伸入一根手指来拉紧或调整鞋带。
When they pull data to load into the production environment, they simply pull data from both file systems, and compress, then pass on to their production cluster.
当拉出数据载入到生产环境中时，只需要从这两个文件系统拉出数据，压缩，然后传送到生产集群中。
Hurry! Pull on your clothes and leave for the station. The train is coming with your friend!
快点！穿上衣服到车站去。你朋友的火车马上就到了！
Pull on your best pair of warm socks, wiggle your toes and enjoy a cozy kind of bliss.
穿上最暖和的袜子，动动脚趾，享受舒适的快乐。
The new planets were detected by measuring "radial velocity," or how fast a star wobbles depending on the gravitational pull from nearby planets.
新的行星是靠测量“径向速度”，或者恒星在周围行星的万有引力下摇摆的速度检测出来的。
But gravity lessens with distance and this means that the pull from the Moon is stronger on the side of Earth that is facing the Moon.
但是，引力随距离增大而减小，这意味着月球施加在朝向自己那一面的地球部分的拉力要大些。
No one sews a patch of unshrunk cloth on an old garment, for the patch will pull away from the garment, the tear worse.
没有人把新布补在旧衣服上。因为所补上的，反带坏了那衣服，破的就更大了。
Gregor provided a Google Mashup Editor tutorial that shows how to pull an Atom feed of calendar entries and display event locations on a map.
Gregor提供了一个GoogleMashup编辑器教程，它展示了如何抓取一个日历条目的Atom数据提要(feed)，然后在地图上显示事件地点。
In the past, miners used picks and shovels to dig the coal and load them on to small carts. Then mules would pull the carts to the entrance.
过去，矿工们要用锄头和铁锨挖煤，然后装上小煤车，之后再用骡子拉出地道。
You're dressing for a date and when you pull on your favorite jeans, you can no longer button them.
为了赶赴约会，你穿上自己最喜欢的牛仔裤，却发现扣不上。
The cat's master obtained both bag and boots, and watched the cat pull on the boots and throw the bag over his shoulder.
猫的主人拿出了袋子和靴子，看着猫穿上靴子，背上袋子。
With a pull approach, on the other hand, the parser is effectively an iterator for going through the components of a document on demand.
相反，在使用拉方式的情况下，解析器实际上是一个高效的迭代器，可以根据需要对文档中的不同部分进行遍历。
Multiple notification bar: on Android, there is a handy pull down area where you can see all of your recent notifications, like for your new messages or new voicemails.
多通知栏：在Android系统里有个便捷的下拉区域，可以让你看到当前所有的通知，比如新短信或新语音讯息。
As I talked about before, having a ton of friends on social networks is a major pull on your attention, and results in superficial relationships anyway.
正如我之前所说的，社交网络上拥有大量好友极大的分散了你的注意力，然而这些人却都是泛泛之交。
Take one of them and pull off the petals.Drop the petals on the floor leading to the bedroom and place several petals on the bed.
把其中一只玫瑰的花瓣摘下来，将玫瑰花瓣撒在地板上一直铺到卧室门前，并且放几片花瓣放在卧室的床上。
But because the distance from the Moon is greater, the pull from gravity on the far side of the Earth is about six percent less than on the side facing the Moon.
但因为距离月球更远，地球背面受到的拉力比朝向月球那面受到的拉力小约6%。
Giant black holes in just the right mass range would pull on the front of a closely passing star much more strongly than on the back.
当一颗邻近的恒星经过巨大黑洞时，巨大的潮汐作用会把恒星拉长变形并造成部分的气体掉入黑洞。
I use my regular journal for this (on my PC), so I can do a quick keyword search to pull up my notes and observations of all the diets I've ever tried.
我把这些记在自己平常的日记上(在我电脑里)，所以可以用关键字很快地搜出那些关于我尝试过的所有饮食方式的笔记和观察日记来。
I use my regular journal for this (on my PC), so I can do a quick keyword search to pull up my notes and observations of all the diets I've ever tried.
我把这些记在自己平常的日记上(在我电脑里)，所以可以用关键字很快地搜出那些关于我尝试过的所有饮食方式的笔记和观察日记来。
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