em是什么意思主要有以下三种意思：
1、EM ： Electronic Mail（电子邮政）
2、EM ： Engineering Manual（工程手册）
3、em ： them（他们的宾格）
EM还有其他几种解释：
EM：Eddie Murphy埃迪·墨菲 EM：Engineering Model工程模式
EM：Error Monitor误差监视器 EM：Expanded Memory扩充内存
EM：Emergency Management应急管理 EM：Electron Microscopy电子显微术，电子显微镜检查
aquatic?product
列句：1.
本文介绍了HACCP体系的发展概况和主要构成，并结合我国水产冷冻加工行业概况，对影响其完善和发展的几个主要存在问题进行了分析和探讨。
This?paper?presents?the?development?and?major?contents?of?HACCP?system.?based?on?the?situation?of?aquatic?product?freezing?and?processing?plant?in?China,?several?problems?affecting?perfection?and?development?of?HACCP?system?are?analyzed?and?discussed.
2.
滩涂牡蛎养殖场是一种水产养殖方式。
Oyster?beds,?on?the?mudflats,?are?a?form?of?fish?farming.?
3.
我国近海有丰富的水产资源。
Our?country?has?rich?offshore?aquatic?resources.?
4.
这些蜗牛原产自南美洲，由全球水产技术公司意外地带入了埃布罗河三角洲，该公司曾为淡水水族馆饲养这些蜗牛，却不慎让它们逃脱了。
Originally?from?South?America,?the?snails?were?accidentally?introduced?into?the?Ebro?Delta?by?Global?Aquatic?Technologies,?a?company?that?raised?the?snails?for?fresh-water?aquariums,?but?failed?to?prevent?their?escape.?
5.
“这是分享和获得好评之间的平衡点，同时也能打击剽窃行为，”丹麦夏洛腾隆国家水产资源研究秘书处的项目协调人伊福·格里戈罗夫说道。
This?is?the?sweet?spot?between?sharing?and?getting?credit?for?it,?"This?is?the?sweet?spot?between?sharing?and?getting?credit?for?it,?while?discouraging?plagiarism."?says?Ivo?Grigorov,?a?project?coordinator?at?the?National?Institute?of?Aquatic?Resources?Research?Secretariat?in?Charlottenlund,?Denmark.?
6.
澳大利亚的水产养殖业以鲑鱼、金枪鱼和牡蛎的养殖为主。
Aquaculture?in?Australia?is?dominated?by?the?farming?of?salmon10,?tuna,?and?oysters11.?
7.
WindowS?DNA体系在智能化水产养殖信息系统中的应用
Application?of?Windows?DNA?System?on?Intellectual?Aquacultural?Information?System?
8.
Internet与水产信息资源
INTERNET?and?fishery?information?resources?
