Abstract:据中国和日本1975－1982年期间在东海大陆架外缘和大陆坡各自调查所获拖网试捕与海况资料,分析研究结果：调查海域近底层温盐度周年变化很小,水平分布为内侧高、外侧低。长颌水珍鱼集群区夏季适温为11－15℃、适盐为34．4×10-3至34．6×10－3,冬季适温为12－18℃、适盐为34．5×10－3至34．7×10－3。水珍鱼周年分布于东海大陆架外缘和大陆坡上、中部一带(25°30′－32°00′N,水深120－600米),其集群区则在该带中部(28°00′－30°30′N,水深130－280米),该区有许多处海底平坦,鱼探映象明显,适合于单拖作业。根据资源面积密度法,算得水珍鱼原始资源量为41100吨。开发水珍鱼资源的时机已趋成熟。

Abstract:Seasonal variation of bacterioplankton growth rate was measured with 3H- thymidine tracing method in Gehu Lake, along with the measurement of sedimentation of detritus, content of organic matter and C/N ratio of particulate and sedimented matter. The results show that there exist marked seasonal variations in growth rate of bacteria on season,sedimented matter, and is highly related to water temperature, organic matter concentration, C/N ratio and sedimentation of organic matter. The bacteria growth rate is an important parameter of structure and function of lake ecosystem, and also constitute the base for fisheries exploitation.

Abstract:Squid (Ommastrephes bartrami) from Northern Pacific, its muscle of body changes in shrink, weight, moisture and total nitrogen were studied when it was heated in boiling water. It is found that the body vertical change was much more than that in horizon-tal change. Maximum changes in volume, weight, moisture have been reached when the body is boiled at the 4th minute, then trending towards stability. Total nitrogen losses be-come more during heating. In order to prevent from moisture loss, hardening and nutrition loss during boiling and to optimize the operation condition, the boiling procedure should be entirely finished in 3 minutes.

Abstract:本文根据1995年7－8月鱿钓调查结果着重对西北太平洋（155°E－160°E）柔鱼渔场形成的海洋环境条件进行了分析，并与155°E以西渔场进行了比较。155°E以西海域暖寒交汇区有密集的等温线分布，同时也存在明显的暖水团；155°E以东海域等温线分布较为稀疏，并基本上与纬度平行。各海区柔鱼渔场的表层水温不一，155°E以西海域为20－23℃，155°－160°E海域为17－18℃，20℃和17℃的等温线可分别作为155°E以西海域和155°－160°E海域寻找渔场的指标之一。渔场形成的海域50米以内水层存在着温跃层。

Abstract:The electric-dydraulic flow control system of hydraulic elevator is a typical nonlinear control systern with changeable load, hydraulic capacity and viscosity. Its property affects the ride comfort of hydraulic elevator directly. In order to further study the running performance of electric hydraulic flow control system, the mathematical models of hydraulic elevator with changeable parameters are set up and transformed into the corresponding computer models in this paper. The running performances of hydraulic elevator are studied through simulation and experiment, and are analyzed and compared under two control ways- flow feedback and velocity feedback.

Abstract:This paper introduced a new measurlng system, using water as a king of even distributed load, for measuring of relative deflection of heat insulation sandwich plate which widely used in cold stores. The results show that the accuracy of measurements by means of the system sufficiently approaches to 10-4. Approsal has been raised for modifica-tion 0f the Standard of ZBX99003- 86 and JB/T6527- 92.