[zh-cn] sync deployment.md

Signed-off-by: Gao Qian <gaoq.jy@fujitsu.com>

content/zh-cn/docs/concepts/workloads/controllers/deployment.md

@@ -96,20 +96,21 @@ In this example:
 在该例中：
 
 <!--
- * A Deployment named `nginx-deployment` is created, indicated by the `.metadata.name` field.
-* The Deployment creates three replicated Pods, indicated by the `.spec.replicas` field.
- 
--->
-* 创建名为 `nginx-deployment`（由 `.metadata.name` 字段标明）的 Deployment。
-* 该 Deployment 创建三个（由 `.spec.replicas` 字段标明）Pod 副本。
-
-<!--
-* The `selector` field defines how the Deployment finds which Pods to manage.
+* A Deployment named `nginx-deployment` is created, indicated by the
+  `.metadata.name` field.  This name will become the basis for the ReplicaSets
+  and Pods which are created later.  See [Writing a Deployment Spec](#writing-a-deployment-spec)
+  for more details.
+* The Deployment creates a ReplicaSet that creates three replicated Pods, indicated by the `.spec.replicas` field.
+* The `.spec.selector` field defines how the created ReplicaSet finds which Pods to manage.
   In this case, you select a label that is defined in the Pod template (`app: nginx`).
   However, more sophisticated selection rules are possible,
   as long as the Pod template itself satisfies the rule.
 -->
-* `selector` 字段定义 Deployment 如何查找要管理的 Pod。
+* 创建名为 `nginx-deployment`（由 `.metadata.name` 字段标明）的 Deployment。
+  该名称将成为后续创建 ReplicaSet 和 Pod 的命名基础。
+  参阅[编写 Deployment 规约](#writing-a-deployment-spec)获取更多详细信息。
+* 该 Deployment 创建一个 ReplicaSet，它创建三个（由 `.spec.replicas` 字段标明）Pod 副本。
+* `.spec.selector` 字段定义所创建的 ReplicaSet 如何查找要管理的 Pod。
   在这里，你选择在 Pod 模板中定义的标签（`app: nginx`）。
   不过，更复杂的选择规则是也可能的，只要 Pod 模板本身满足所给规则即可。
 
@@ -253,10 +254,13 @@ Follow the steps given below to create the above Deployment:
    * `AGE` 显示应用已经运行的时间长度。
 
    <!--
-   Notice that the name of the ReplicaSet is always formatted as `[DEPLOYMENT-NAME]-[HASH]`.
+   Notice that the name of the ReplicaSet is always formatted as
+   `[DEPLOYMENT-NAME]-[HASH]`.  This name will become the basis for the Pods
+   which are created.
    The `HASH` string is the same as the `pod-template-hash` label on the ReplicaSet.
    -->
-   注意 ReplicaSet 的名称始终被格式化为`[Deployment名称]-[哈希]`。
+   注意 ReplicaSet 的名称格式始终为 `[Deployment 名称]-[哈希]`。
+   该名称将成为所创建的 Pod 的命名基础。
    其中的`哈希`字符串与 ReplicaSet 上的 `pod-template-hash` 标签一致。
 
 <!--
@@ -1894,14 +1898,23 @@ configuring containers, and [using kubectl to manage resources](/docs/concepts/o
 配置容器和[使用 kubectl 管理资源](/zh-cn/docs/concepts/overview/working-with-objects/object-management/)等相关文档。
 
 <!--
-The name of a Deployment object must be a valid
-[DNS subdomain name](/docs/concepts/overview/working-with-objects/names#dns-subdomain-names).
+When the control plane creates new Pods for a Deployment, the `.metadata.name` of the
+Deployment is part of the basis for naming those Pods.  The name of a Deployment must be a valid
+[DNS subdomain](/docs/concepts/overview/working-with-objects/names#dns-subdomain-names)
+value, but this can produce unexpected results for the Pod hostnames.  For best compatibility,
+the name should follow the more restrictive rules for a
+[DNS label](/docs/concepts/overview/working-with-objects/names#dns-label-names).
 
 A Deployment also needs a [`.spec` section](https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#spec-and-status).
 -->
-Deployment 对象的名称必须是合法的
-[DNS 子域名](/zh-cn/docs/concepts/overview/working-with-objects/names#dns-subdomain-names)。
-Deployment 还需要 [`.spec` 部分](https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#spec-and-status)。
+当控制面为 Deployment 创建新的 Pod 时，Deployment 的 `.metadata.name` 是命名这些 Pod 的部分基础。
+Deployment 的名称必须是一个合法的
+[DNS 子域](/zh-cn/docs/concepts/overview/working-with-objects/names/#dns-subdomain-names)值，
+但这会对 Pod 的主机名产生意外的结果。为获得最佳兼容性，名称应遵循更严格的
+[DNS 标签](/zh-cn/docs/concepts/overview/working-with-objects/names#dns-label-names)规则。
+
+Deployment 还需要
+[`.spec` 部分](https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#spec-and-status)。
 
 <!--
 ### Pod Template