大面积

Optical design and analysis of laser screen for projectile velocity measurement［J］.

大面积激光测速靶光学系统的设计与分析［J］。

A novel Laser screen velocity measuring method with large effective screen area is introduced for some special velocity measuring occasions like wide spreading range or big-size flying objects.

摘 要：针对弹道散布范围大或被测飞行物体尺寸大的测速场合，介绍了一种实现大面积有效靶区激光光幕速度测量的方法。

Using hybrid rice variety Shu-hui 527 and "2330" from the southwest university of science and technology as the materials, the effect of crude toxin from Phyricularis.cav on the induction, growth and differentiation of callus from rice mature embryos were studied in the present rice area of Sichuan.

以生产上大面积推广的杂交水稻恢复系蜀恢527和西南科技大学自育优质高产杂交水稻恢复系&2330&为材料，研究目前四川地区的稻瘟优势菌株稻瘟菌粗毒素对水稻成熟胚愈伤组织诱导、生长和分化的影响。

The neuritis beach abound in seafood, such as sea clam, trumpet shell and crab...etc. It is very suitable for the sea tour development like joining in the fishing as a topic of recreational travel.

大面积的浅海滩涂，盛产海蛎子、蛤、海螺、蟹等海产品，非常适合发展以赶海、渔家乐为主题的休闲旅游。

The system can selective trip the overcurrent line in 0.2 second so that a serious override trip can be avoided.

该系统能够在电网发生短路故障后0 。2 s内实现有选择性的快速断电，从而避免井下电网因越级跳闸而造成的大面积停电。

There're already reports of widespread coastal flooding in the tobacco-growing province of Pinar del Rio, a neighboring Havana province.

有报道称，在临近在哈瓦那省的Pinar del Rio，大面积的烟草田已经被海潮吞没。

Most of the flood from the wide inner lowland plain discharges through tide locks on coast,and the influence of tidal flat inning projects on the tide lock drainage must be solved by seawall line choice.

淤泥质海岸后方大面积的低地平原主要通过海岸上建设的涵闸排水，潮滩匡围对沿海涵闸排水的影响是围垦工程必须解决的问题。

Flood drain of wide lowland plain behind mud coast mostly clings to tide locks on seacoast,and the influence of tidal flat inning project on tide lock drainage should be solved through seawall line choosing.

淤泥质海岸后方大面积的低地平原主要通过海岸上建设的涵闸排水，潮滩匡围对沿海涵闸排水的影响是围垦工程必须解决的问题。

The research shows that:①The land use/cover of Asia at the ecological security level takes on a macroscopical three-circle pattern.

研究表明：①亚洲生态安全条件下的土地利用/覆盖宏观三圈格局为：内圈以自然保护为主的沙漠地带；中圈以建设人工草地为主，辅以大面积自然恢复的草原地带；外圈以农、林、牧复合为主的交错地带。

Because of all the wireless terminals connected to amend Channel is a not a small project, so you should first of all on a single wireless terminal for testing can be effective only after the implementation of a large area.

由于在所有的无线终端上修改连接频道是一项不小的工程，因此你首先应该在一台无线终端上测试，证明确实有效后才可以大面积实施。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。