overhead

noun

1. a hard return hitting the tennis ball above your head

Synonym: smash

2. (nautical) the top surface of an enclosed space on a ship

3. a transparency for use with an overhead projector

Synonym: viewgraph

4. (computer science) the disk space required for information that is not data but is used for location and timing

Synonym: disk overhead

5. the expense of maintaining property (e.g., paying property taxes and utilities and insurance)
it does not include depreciation or the cost of financing or income taxes

Synonym: operating expenseoperating costbudget items

6. (computer science) the processing time required by a device prior to the execution of a command

Synonym: command processing overhead timecommand processing overheadcommand overhead

adj

1. located or originating from above

e.g. an overhead crossing

adv

1. above the head
over the head

e.g. bring the legs together overhead

2. above your head
in the sky

e.g. planes were flying overhead

1. 在头顶上的；在上面的；高架的
You use overhead to indicate that something is above you or above the place that you are talking about.

e.g. She turned on the overhead light and looked around the little room.
她打开头顶上方的灯，环视了一圈这个小房间。
e.g. ...people who live under or near overhead cables.
住在高架电缆下或其附近的人

1. 过顶传球：一般说来,传球有下列几种方式:胸部传球(chest反弹传球(bounce过顶传球(overhead大力传球(baseball-type及身后传球(behind-the-back). 进攻方必须通过投篮才能得分,投篮方式(shooting form)不外乎下面几种:当然,

2. 高球：4.0可靠的击球动作,包括控制中速度的正,反拍方向,也有能力打好吊高球(lob),头上的高球(overhead),击球上网(approach shot)和截击(volley). 偶尔能以发球迫使对方失误,对抽(rally)可能因耐心不足而失分,双打搭档有明显的合作意识.

3. 间接费用：他们被这香饵吸引最终放弃了原有的社会体制,丧失了真正的自由. 那些非犹太人(Goyim)中所谓的智者沉于迷梦,无法了解自然法则根本不存在什么平等和自由. ......2.间接费用(Overhead)指不能通过直接认定的方法归集到销售或生产的费用.

4. overhead是什么意思

4. 额外开销：总的来说,空档不能设的太低,应该是太低的话网络和系统资源的额外开销(Overhead)比较大,因为实际上上传的流量里ED2K协议本身的数据流量不可忽略,而且sl空档越小,这部分非有用流量的比率越大,造成传送给其他用户上传的效率比较低.