查询词典 level surface

The shallow seas and tidelands have a total area of 13.33 million ha, of which 2.6 million ha of water surface are suitable for the raising of aquatic products in terms of the current scientific level.

中国有浅海、滩涂总面积约1333万公顷，按现有的科学水平，可进行人工养殖的水面有260万公顷，已经开发利用的有93.8万公顷。

The shallow seas and tidelands have a total area of 13.33 million ha,of which 2.6 million ha of water surface are suitable for the raising of aquatic products in terms of the current scientific level .

浅海和潮浸区总面积有1333万公顷，根据现在的科学水平，其中的260万公顷水面适合水产品养殖。

When planting keep the root ball level with soil surface.

种植时把根球水平与土壤表面。

When planting keep the root ball level with soil surface.

当种植根球水平保持土壤表面。

In this article, the direction determining of low-noise targets and measurement of underwater noise level in the condition of surface noise is discussed.

文章摘要：文章对存在海洋表面噪声时的低噪声目标的方向测定问题和水下噪声级测定问题进行了讨论。

Because of the absorption of ozonosphere existing in higher level atmosphere,the sun-blind-region ultraviolet radiation (200～280nm) of solar spectrum could hardly reach the surface of the earth. Therefore, the communication system using this spectral coverage could hardly be disturbed.

由于地球大气上层臭氧的吸收作用，阳光中的日盲区(200～280nm)辐射几乎无法到达地球表面，因此，采用这个波段的光学通信系统几乎不会受到太阳光的干扰。

As the film surface ciean molecular chain of activities, that is, the surfactivity level.

由于薄膜表面受热，分子链的活动加剧，即表面活性程度提高。

Density functional theory calculations at the B3LYP/6-31G level of theory were employed to study the mechanism and the potential energy surface of Diels-Alder reactions between Lewis base stabilized borabenzene and dienophiles.

采用密度泛函理论方法在B3LYP/6-31G水平上研究了Lewis碱稳定的硼代苯与一些亲二烯体的两种可能的Diels-Alder反应的微观机理和势能剖面，并研究了反应的溶剂效应和取代基效应。

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％。