The best evidence to date concerns folate, one of the B vitamins.
迄今为止最好的证据是叶酸，即维生素B的一种。
In the observational studies we found that some of the B vitamins were beneficial.
在观察性研究中，我们发现一些维生素B是有益的。
Levels - Number of levels in the b-tree.
levels-B -树中的级数。
In use since 1993, the B-2 has been deployed to both Iraq and Afghanistan.
从1993开始使用，B - 2在阿富汗和伊拉克均使用过。
The B-Tree Scanner automatically determines which index items are to be deleted.
B -TreeScanner自动判断哪些索引项应该删除。
The B-Tree Scanner threads remove deleted index entries and rebalance the index nodes.
B - TreeScanner线程会去掉删除的索引项并重新平衡索引节点。
The B-2 is hard to detect via infrared, acoustic, electromagnetic, visual or radar signals.
B - 2无法通过红外线、声音、电磁波、视觉上的及雷达信号跟踪侦查。
According to the us Justice Department, Mr. Chung sent 24 manuals relating to the B-1 Bomber.
美国司法部称，钟先生寄出了24本与B - 1轰炸机相关的手册。
The B-2 bomber, commonly known as the stealth bomber, was an ambitious project, to say the least.
轰炸机，众所周知的隐形轰炸机，是一个非常有雄心的计划，至少可以这么说。
The B-tree would store the key value, followed by a list of pointers to each of the physical rows.
B-树将存储键值，以及一个指向每个物理行的指针列表。
When one of the bad guys was below, the B button popped up on screen as an invitation for a silent kill.
当坏人中的一个人在下边，屏幕上跳出一个提示，按B键安静的杀他。
Increment 2 is the largest effort ever undertaken to augment the lethality of the B-2 weapon system.
增量2项目是美军有史以来规模最大的研发工作，以增加B - 2武器系统杀伤力。
America is starting to follow suit, with the B-corp, a hybrid of for-profit company and non-profit organisation.
美国现在也要跟着做了，成立了B公司，一个营利性公司和非营利性公司的结合。
However, the B/L shows that when the shipping company received the goods, they were in apparent good condition.
但货运提单显示船公司收到货时，货物外表良好。
Replace the B with a using the vi-style "replace single character" commands (that is, click r, and then type a).
使用vi风格的“替换单个字符”命令将b替换为a(即单击r，然后键入A)。
As long as this first rate into the B is small compared to one of those two rates, B we're never going to pile up B.
只要生成b的第一个速率，小于这两个速率其中之一，我们就绝不会积聚。
Over a period of two years, half were given a daily tablet containing high doses of the B vitamins folic acid, B6 and B12.
在两年间，其中一半志愿者每天服用一颗含有高剂量维生素B叶酸、B6与B12的药片。
The B-Tree Scanner improves transaction processing for logged databases when rows are deleted from a table with indexes.
从有索引的表中删除行时，B -TreeScanner有助于改进启用了日志的数据库的事务处理。
This is the first step in getting this capability fielded, and the B-52H is the right platform to mature this technology.
这是获得该项能力的第一步，B - 52h是使这项技术成熟的正确平台。
Northrop Grumman is the Air Force's prime contractor for the B-2, the flagship of the nation's long range strike arsenal.
诺斯罗普·格鲁曼公司是美国空军B-2远程打击隐形轰炸机的主要承包商。
After all, the "b" in BPEL stands for "business," so BPEL should be used only for programming on the business logic level.
毕竟，BPEL中的“b”代表“业务(business)”，因此，BPEL应该只用于在业务逻辑层面上编程。
Not long ago, Duryea led some of Jimmy Doolittle's Raiders, the B-25 bomber crews who took off from the aircraft carrier uss.
1942年，杜里埃带领着吉米·杜里德的突击队攻打了日本的石油和海军设施时，B - 25轰炸机机组人员就是从美国大黄蜂航空母舰上起飞的。
“We’re using rubber bands and bubbles to show the B cell alerting the T cell that there’s a foreign invader,” Ms. Batkin said.
“我们正使用橡皮筋儿和泡沫去展示B细胞警告作为外来入侵者的P细胞，”BATKIN夫人说。
Northrop Grumman is the Air Force's prime contractor for the B-2, the flagship of the nation's arsenal of long-range strike aircraft.
诺斯罗普·格鲁曼公司是空军B-2隐形轰炸机的主承包商，也是国家生产远程战略飞机军工企业的旗舰。
Late 2008 brought in the B-Tree file system (Btrfs), and more recently, two other unique file systems were introduced: NiLFS (2) and exofs.
年底引入了B - TreeFileSystem (Btrf)，最近又引入了两种独特的文件系统：NiLFS(2)和exofs。
Still, if you think this is bad, you should hear the B-side: Mendelssohn’s Wedding March played on a feeble synthesizer over a disco beat.
当然，如果你认为这个很糟糕，你还可以听听B面：门德尔松的婚礼进行曲附着迪斯科的节拍在无力的合成器上播放。
It's not surprising that Burton's first "biopic" is about someone revered in the b-movie heyday of the 1950s - that spawned Burton himself.
波顿的首部人物传记电影是关于上世纪50年代B级片全盛时期的一位导演这并不让人惊奇，因为正是B级片滋养了波顿。
These upgrades have given the B-52 pin-point targeting capability and the capacity to carry the largest variety of weapons among the heavy bombers.
这些升级使得B-52具有精确目标定位能力，并在所有重型轰炸机中可携带最大数量的武器的能力。
Soon afterward they began flying the country's newest, biggest bomber-the B-29 Superfortress, another plane with a reputation for being hard to handle.
不久之后，她们又开始驾驶美国当时个头最大最新式的轰炸机——B - 29超级空中堡垒，同样因为难以操控著称。
Soon afterward they began flying the country's newest, biggest bomber-the B-29 Superfortress, another plane with a reputation for being hard to handle.
不久之后，她们又开始驾驶美国当时个头最大最新式的轰炸机——B - 29超级空中堡垒，同样因为难以操控著称。
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